i think something else useful would be all units with atk and defense modifier skills, yurina's skill, for example, causes a 10% atk cut to all enemies, which is 500 atk from 5000 atk enemies for only 4500 atk, which is an easier target to hit. also elyse's(black iris) skill gives everyone double defense(2.5x when awakened) which can let units with high defense get the boost they need to tank it easily.