Nastrond furthers his survivability because when an ally is kill, he receives 80% of his Max HP/Null Mortal for a single turn. This repeated heal allows him to survive most T1 turns reliably, and turn the table through Recarmdra.
With a decent LUK stat, he can make use of skills like Mahashibabooon.
Two nulls in physical/ice.
Cons
Fairly passive due to serving a primarily supportive especially against teams with anti-ailments/cleansers.