Demon Alliance Invasion

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Due to the ongoing nature of this event, information posted on this page will be expanded and updated as learn more. In addition, due to this being a beta version we can expect significant changes to the functioning of the event. Feel free to discuss strategies and information on discord or reddit.

Getting Boss Spawns

Bosses may spawn from most mission types.

Bosses will NOT spawn from the following:

  • Story quests that play cutscenes after the fight. Seemingly, ones that play the cutscene before the fight will spawn the bosses normally.
  • Alter-World quests.

Once a boss appears, it will be available to fight for 8 hours, or until it is defeated - whichever happens first.

Up to 10 bosses discovered by the player can be stored in the battle menu at a time. Bosses discovered by other players are not subject to this limit.

Boss tiers

There are three tiers of bosses that can spawn:

  • Normal Boss (tier 1)
  • Superior Boss (tier 2)
  • Ultimate Boss (tier 3)

When a boss spawns from completing quests, it can be any of the three tiers.

When a boss spawns from defeating another boss, it will be a Superior or Ultimate Boss (never a Normal Boss).

Higher-tier bosses have much more HP per level, and will give much more event points.

Battle Basics

Example of the buff stacking in effect. Notice the +420% attack bonus due to several stacked Tarukaja effects.

These boss fights will allow you to field two parties, similarly to Leveling Quests or Aura Gate exploration parties. Important to note that the party configurations are saved independently from Dx2 selected, so you may form a party, decide that a different Dx2 would be a better match, and change them without needing to re-select your demons once again.

  • Both fights have a 2-turn limit
  • If your first team can't defeat the boss in time, the battle will progress to its second phase, with your second team.
  • If your first team dies to the boss, the battle will simply move to the next phase.
  • If the second team also can't beat the boss within the turn limit, the battle will end inconclusively, and you will request an S.O.S. from a group of random players.
    • This SOS will target 10 players who have played within the last 3 days, divided into: 4 friends, 4 faction users, and 2 random players. You can also send friend requests if the player in question isn't already a friend.
  • If the boss's HP reaches 0, the battle will end immediately, regardless of which team is currently fighting.

If a boss that you found dies (whether you killed it or someone else did), that boss's level will go up by +1 the next time you encounter one. (Example: You discover a level 2 Anat and it dies. The next Anat that you discover will be level 3.) At higher levels, bosses will gain higher stats and especially HP. Their skills will stay the same, though.

  • However, if a boss someone else found dies, that does NOT affect your own boss levels.
  • Bosses that escape due to a time-out will not count as killed, and therefore will not increase level.

All players' boss levels will reset once the second half of the event starts.

Buff Stacking

One player's buffs will carry over to other players' fights, stacking to high numbers, allowing the participants to deal increasing amounts of damage to high level bosses. This is necessary to even be able to survive high level boss attacks.

  • Buffs you cast during a run will be added to your total buffs immediately.
  • Buffs cast by other players will be applied to your total buffs only after the other player finishes their run.

There doesn't seem to be a cap to attack and defense buffs, however the Icon EVAC Buff.png Sukukaja buffs cap out at +100%, likely to avoid instances where the boss is completely unable to hit any player demon and maintain a certain level of difficulty.

Liberator effects (such as Chalk.png Chalk Eater) also count for this.

However, debuffs will NOT stack. Only buffs will stack!

BP and Attack Modes

With this new event comes a new form of Stamina, called BP. These are used exclusively on this kind of battle, and recovers independently from normal Stamina, Duel Stamina, or Aura Gate Steps. 1 BP recovers every 10 minutes.

BP has its own refill drinks as well, called Icon Rader Pepper.png Rader Pepper and Icon Time Limited Rader Pepper.png Time-Limited Rader Pepper.

When selecting a fight, three options are available, each with a different cost and different boost to the team's damage output:

Option Cost ATK boost
Attack 1 BP 1x
Strong Attack 2 BP 3x
Full Power 3 BP 5x

Additionally, the boost will multiply the amount of buffs received per cast.

  • For example: Casting a Icon DEF Buff.png DEF buff normally adds +20% to your buff totals. During a Full Power run (x5 multiplier), casting a Icon DEF Buff.png DEF buff will add +100% to your buff total instead.

When responding to another player's SOS call, the first run against that boss will have all BP options discounted by 1 BP.

Point Calculation

After each run you are awarded points depending on your performance. There are two types of scores awarded:

  • If you did not kill the boss, and nobody killed the boss while you were running your attempt, you will just get points based on your current run.
  • Else if the boss did die, you will also get an additional set of points for your total performance in that boss fight.

The general formula for score calculation is the following:

LAST ATTACK BONUS = 1.5 if boss is killed during run, 1 otherwise
DISCOVERY BONUS = 1.2 if boss is discovered by you, 1 otherwise
BUFF BONUS = 1 + X * (0.15), where X is the amount of times a buff effect was used while one of the corresponding buffs was already active (max X = 40)
DAMAGE BONUS = (max value of 6 if you dealt 100% of the boss's health in damage. exact scaling needs testing)

Further explanations:

  • Battle Points varies depending on the boss, in general the rarer the boss the higher the Battle Points you receive. Increases with Bonus SP demons
  • Buff Bonus only looks if one of the stats is already buffed, meaning if you have both DEF, and ATK up and cast War Dance, the factor X will still just go up by 1. This means you want as many chain effects/separate skills that apply buffs as possible
  • Total Score when the boss is killed is calculated using the same formula, only using the total amount of damage you did across all runs of the boss for the Damage Bonus and the total amount of times you triggered the Buff Bonus

General Pointers

When looking at the formula, the following guidelines appear for maximizing your own points:

  • Having a team that can apply buffs while also still dealing damage is optimal, to also make use of the buff multiplier as much as possible.
  • The buff bonus has a cap of being increased 40 times, meaning that at some point you will get no more score increases from buffs during your run. Since this is after at least 41 instances of applying buffs, this will rarely happen during a single run. The damage/defense multiplier will still increase though, so it's usually still effective to get as many ways to buff your team as possible
  • You want to deal most of the damage in the same run that you finish off the boss, to combine the final blow multiplier with the damage multiplier. Finishing off a boss with just a sliver of health will generally give very little points.
  • Use Silveruniticon.pngGolduniticon.png Bonus SP demons whenever possible. However, you're unlikely to have a full set of 8 that are actually functional. Aim for a balance between bonus demons, and demons that are good by their own merits.
Icon Bonus
Golduniticon.png Battle Certificate: 50%
Greatly increased encounter rate with rare bosses when defeating bosses
Silveruniticon.png Battle Certificate: 12.5%
Small increased encounter rate with rare bosses when defeating bosses


BP management:

  • Once you start fighting higher-level bosses, the damage you can deal during your first battle will be very low compared to their scaling HP stat. It's best to do one or two battles using the standard 1 BP attack option to build your buff stock, then use the 3 BP option to attack for massive damage.
  • Normal-tier bosses have very low drops, so they're only worth fighting to spawn a Superior or Ultimate boss, if your SOS list has none at the moment. Be careful not to spend too much BP on Normal bosses.
  • As boss levels increase, farming the event becomes more difficult. The discovery bonus multiplier also isn't very high. Therefore, you should prioritize fighting SOS bosses over your own bosses, especially Ultimate (tier 3) bosses for points.
    • For SOS Ultimate bosses, do a couple 1 BP runs to set up buffs, then a bunch of 3 BP runs to grind out as much points as possible (getting a kill is great for the multiplier, but it's difficult as you're competing with other players to get it). Use Icon Rader Pepper.pngIcon Time Limited Rader Pepper.png Rader Peppers if you have any, as spending 3 BP on Ultimate boss runs in this way is the most-efficient use of BP.


  • You may be able to kill the first or second boss quickly enough to not worry about their damage, but in time you will have to bring healer/tank units to keep your team alive.
  • Do not neglect Icon EVAC Buff.png Sukukaja buffs. They may not increase your damage, but a lucky dodge may well save your team from death to let them fight another turn.
  • Remember that each team only gets to fight for 2 turns. Whether your team has the speed to go first or second, affects how much survivability you need to have:
    • If you go first, then you need to tank 1 turn of the boss's attacks - if the boss kills someone on its second turn, it won't matter, as you'll automatically switch to the next team or finish the run anyway.
    • If you go second, then you need to tank 2 turns of the boss's attacks.

Useful Liberators


  • Chalk.png Chalk Eater is the man to use if you find yourself fighting a boss with an exploitable weakness. He will repeatedly provide you with buffs of all 3 types, MP recovery, and occasionally extra press turns. If no weaknesses are present, he can still give your demons +7 MAG.
  • Eileen.png Eileen will make Random Targets Random Targets attacks have higher minimum hits, and will occasionally not use up any press turns when Passing. This is especially helpful as the fight drags on, as your demons might eventually not have enough MP to attack, making you Pass their turns. Getting that Pass for free could let you squeeze in a couple more skill uses.


  • Kangaroo.png Kangaroo Boxer boosts your physical attacks (+7 STR, +7 AGI), and casts Icon EVAC Buff.png Sukukaja and Icon EVAC Debuff.png Sukunda to help with accuracy.
  • CarbonBlack.png Vince boosts physical attacks as well (+12 STR), while also boosting critical hit damage and casting Icon EVAC Buff.png Sukukaja and Icon EVAC Debuff.png Sukunda when you land them. If you have demons that can cast Icon Critical.png Rebellion automatically through passives, Vince can also cast Icon DEF Debuff.png Rakunda.
  • Templar.png Templar Dragon will boost Icon Concentrate.png Concentrate and Icon Charge.png Charge effects, like those provided by Mahakala.jpg Mahakala or Panel 2 Cu Chulainn A.jpg Cu Chulainn A. She also gives +5 STR/MAG, and improves healing.
  • Shionyan.png Shionyan grants +12 MAG to the party, improving magic damage. Good choice if you can't meet the conditions of other Liberators.


  • Balloon.png Meat Balloon fits more defensive parties (+12 VIT), and will cast Icon DEF Buff.png Rakukaja when hit by magic or Icon ATK Debuff.png Tarunda when hit by a critical attack. Counter effects will have a higher chance to activate, and will deal more damage.
  • Megakin.png Megakin supports NDR tanking by having a chance to cast Icon DEF Buff.png Rakukaja when Nulling, Icon ATK Buff.png Tarukaja when Repelling, or Icon EVAC Buff.png Sukukaja when Draining a boss's attack. Repels will deal more damage, while Drains will heal more. He also provides +5 VIT/AGI/LUK to slightly improve bulk and accuracy/evasion.

Useful Demons

These demons should work well against almost any boss, whereas other demons might be punished by the current boss's gimmick (for example, heavily reduced damage from certain elements)

  • Erlkonig.jpg Erlkonig will consistently heal your party every turn, and cast Icon ATK Debuff.png Tarunda at the start of the enemy's turn (plus Icon DEF Buff.png Rakukaja if panel 3) to lessen the boss's onslaught.
  • Barong.jpg Barong can cast Luster Candy in addition to healing, increasing your offensive power. If he's panel 4, he can also generate Bulwarks.
  • Demeter.jpg Demeter can keep your party's Bulwarks topped off consistently, trivializing damage taken, as well as casting Luster Candy whenever any other party member receives an attack. My Harvest! additionally grants MP to party members, helping them to keep casting skills.
  • Demiurge.jpg Demiurge, if paired with "Drain <element> " party members corresponding to the boss, can both automatically heal and generate MP for the party - on top of making the boss lose turns, of course.
  • Kalki.jpg Kalki casts Luster Candy and a team heal when using Ratnamaru, which itself uses only half a press turn due to Remnants. This skill can also revive a fallen ally, and give them a Bulwark. To top it all off, Kalki also grants +1 MP recovery to the team, and Repel Pierce + Drain Pierce.
  • Orcus.jpg Orcus reduces damage taken from AoE attacks for the party. If panel 2, he will also cast Icon ATK Buff.png Tarukaja when a party member's weakness is exploited. This can let you stack attack buffs quickly.
  • Ananta.jpg Ananta will cast Luster Candy automatically every player and enemy turn (effectively twice per turn), making him a good budget option for stacking buffs. If panel 4, he will also cast Debilitate at the start of the boss's turn, or whenever you use a skill or chain effect that heals.
  • Elohim.jpg Elohim follows up every Solar Flare with an automatic Offensive Cry to stack up the Icon ATK Buff.png ATK buffs, in addition to his massive damage.
  • Uriel.jpg Uriel, Gabriel.jpg Gabriel, & Raphael.jpg Raphael will cast each of the three buffs as part of their beginning-of-turn chain when 3 or more Divine/Herald demons are in the party.
  • Ame no Uzume.jpg Ame no Uzume will cast Icon ATK Buff.png Tarukaja after any skill heals the party - this includes not just heal skills, but also life-steal effects such as Ouas, and chain effects such as Blossoming Cyclone or Supreme Creator (but it does NOT count Icon Lydia.png Lydia or Dx2 skills). If panel 2, she also casts Icon DEF Buff.png Rakukaja.

"The Wolf and the Blood Banquet" event

[Official News Announcement]

Normal: Ammut Ammut.jpg

Battle 1

Phys Fire Ice Elec Force Light Dark
Ammut - - Wk Wk - - -

Soul-fracture-20.jpg Super-auto-recovery-bind.jpg

Battle 2

Phys Fire Ice Elec Force Light Dark
Ammut - - Wk Wk - - -

Soul-fracture-20.jpg Super-auto-recovery-bind.jpg


  • Reduce boss hp to zero.
  • Non-issue fight, just bring your SP units to squeeze as many points from it as possible.

Superior: Maneater 32px

Battle 1

Phys Fire Ice Elec Force Light Dark
Maneater - Wk - Wk - Rs Rp

Battle 1

Phys Fire Ice Elec Force Light Dark
Maneater - Wk - Wk - Rs Rp


  • Another simple fight, no real gimmicks outside of bulwark spam.
  • To avoid triggering Bulwark, ensure your first team has no Phys Phys, Fire Fire or Ice Ice damage, while your second team should avoid Force Force, Light Light and Dark Dark damage. Elec Elec damage is safe on either phase.

Recommended demons:
In addition to the units detailed in the Useful Demons section of this guide:



Ultimate: Loup Garou 32px

Encounter loupgarou.png

Battle 1

Phys Fire Ice Elec Force Light Dark
Loup Garou - Rs Rs Nu - - -

Fierce-thunderous-advent.png Fierce-vorpal-blade.png 300px 300px Rule-control.jpg Super-auto-recovery-bind.jpg

Battle 2

Phys Fire Ice Elec Force Light Dark
Loup Garou - Rs Rs Nu - - -

Soul-fracture-20.jpg Fierce-thunderous-advent.png Fierce-vorpal-blade.png 300px Rule-control.jpg Super-auto-recovery-bind.jpg


  • In Phase 1, be careful about bringing Elec Elec weak demons as this will trigger a follow up attack by the boss.
    • If you have Demeter.jpg Demeter, then you can bring them intentionally, so she can Bulwark + buff from the boss's follow-up hit.
    • Orcus.jpg Orcus works similarly, but he will only apply Icon ATK Buff.png ATK buffs and will disable bonus turns gained from weakness, making him a worse, but still useful, alternative.
  • Werewolf Erosion will reduce Loup Garou's Elec Elec resistance for two levels up to twice. This will give him a weakness you can exploit for bonus damage, extra turns and free buffs with Chalk Eater, if you lack one of the affinity down demons like Zeus.jpg Zeus or 32px Loup Garou himself.

Recommended demons:
In addition to the units detailed in the Useful Demons section of this guide:


  • Barong.jpg Barong is notably useful for this particular event since at panel 3 he will lower Elec damage taken by the entire party, in addition to the other stuff that makes him useful.


  • Any Affinity lowering demon will help greatly, since they can enable Chalk Eater teams.


For older events, see Demon Alliance Invasion/History
Quest Areas
Permanent Content StoryDx2 QuestsAlter-WorldAura Gate (1, 2, SP)
Farming Quests Strange SignalBrands of SinWanted
Recurring Events EclipseHell's ParkAdventKiwamiTokyo AbyssTake Back TokyoDemon Alliance Invasion
Competitive DemocalypseD2 DuelBattle Tower