Formulas

All results are floored (rounded down to nearest INT).

HP = VIT * 4.7 + LVL * 7.4
PATK = STR * 2.1 + LVL * 5.6 + 50
MATK = MAG * 2.1 + LVL * 5.6 + 50
PDEF = VIT * 1.1 + STR * 0.5 + LVL * 5.6 + 50
MDEF = VIT * 1.1 + MAG * 0.5 + LVL * 5.6 + 50

DAMAGE FORMULA = (ATK * UNKNOWN_MODIFIER - DEF * 0.5) * 0.4  * (SKILL POWER * SKILL LEVEL / 100) * (% DAMAGE MODIFIERS) * (1 * TARUNDA/TARUKAJA) / (1 * RAKUNDA/RAKUKAJA) * (CHARGE / CONCENTRATE: 2.25 or 2.75 w/ Templar Dragon)
10% variance in final damage. 
Critical hit multiplier is 1.5x

-kaja/-kunda effects (applied at end of formula) 
Rakukaja - 1 / 1.2 = 0.83x damage taken
Tarunda - 0.8 / 1 = 0.8x damage taken
Rakukaja + Tarunda - 0.8/1.2 = 0.67x damage taken
Tarukaja - 1.2/1 = 1.2x damage dealt
Rakunda - 1/0.8 =  1.25x damage dealt
Tarukaja + Rakunda - 1.2/0.8 = 1.5x damage dealt

STATUS CHANCE = BASE STATUS CHANCE + BRAND STATUS CHANCE + STATUS CHANCE PASSIVES - ENEMY STATUS RESIST + (USER LUCK - ENEMY LUCK) * 0.5

ACCURACY = BASE SKILL ACCURACY + ACC BRANDS - EVASION BRANDS + (USER AGI - ENEMY AGI) + (USER LUCK - ENEMY LUCK) * (1 * SUKUNDA/SUKUKAJA)
There is a minimum hit chance, and it will take either that or the accuracy depending on what's higher.

CRIT CHANCE = BASE CRIT CHANCE + CRIT BRANDS + (USER LUCK - ENEMY LUCK)