At this point just reduce every class to a single button.

Tanks get a "Tank" button that does room wide AOES and applies provoke on all targets not currently targeting the tank and applies a party-wide defensive buff every 3 uses of the button and causes a bunch of magical shields and barriers to appear around everyone else.

Healers get a "Heal" button that casts a dungeon wide AOE heal at no MP cost that also applies a regen, a shield, and resurrects anyone hit by it if they happen to have died and casts a lot of holy themed sparkles and light effects around the party

DPS get a DPS button that casts a room wide AOE that produces negative aggro, does a ton of damage and reduces everyone else´s time to cast by 50% and causes a lot of explosions and slash effects to go around the room Demonslayer style.

Then 2 patches later make it so that the process is automatic and no longer requires pressing a button.