Thoughts from a 60 AST & 60 WHM

[Dyvid]

Then Di is a copy of WHM and Noct has even less potency and their shield is weaker even though it still sucks.

Diu is already a copy of WHM and Noct is a copy of SCH. WHM heals are reactive and SCH is proactive. Reactive is when you need more healing power while proactive gives you more time to dps and play with cards.