Melee while casting?

[Greatguardian]

The player isn't parrying/countering/evading/guarding... the Monster's attack actions are being parried, countered, evaded, or guarded. Do you notice the subtle difference there?

The monster is the one acting, Not the player.

There is no exception being made. Players can only perform one action at a time.

This "Computers are magic and can do anything the programmer tells them to do" junk is annoying. It's not about being creative. It's about understanding what is and what isn't a basic constriction of a game's development. There are some things that can be changed, and some things that can't.

This is one of the latter.