AmazingAnon

Date: Dec 2014
Posts: 16

All classes should have healing capabilities but could possibly have high requirements/be rare drops

Warriors could have a life leech attack that heals them for a portion of the damage dealt with the attack
Rangers could have a similar thing but with an arrow ability instead
Mages would have the strongest healing abilities and could possibly have group heal spells and possibly a revive spell.

Warriors would have few spells and would deal primarily physical damage
Rangers would be in the middle with both a moderate amount of physical and magic damage
Mages would have lots of spells and would deal mostly magic damage and could possibly have aoe abilities

There could also be defensive spells/abilities that are viable for all classes such as:
Provoke: Causes target to attack you for the next X turns
Reflect: Reduces damage on next turn by 50% and reflects the other 50% back
Barricade: Prevents you from attacking but negates all damage taken
Cleanse: Removes all status effects from targeted person.
Focused strike: Causes next attack to restore mana instead of dealing damage
Silence: Prevents target from using abilities

Could also include different stances instead of just block. It would take a turn to switch stance
Aggressive stance: Deal 50% extra damage while taking 2x damage
Neutral stance(Default): Deal normal damage and take normal damage
Defensive stance: Take 50% damage but deal 0.5x damage

AmazingAnon

Date: Dec 2014
Posts: 16

There could also be special/ultimate spells. Your special attack meter would fill up upon taking damage and/or killing monsters. It would persist between battles so it could be saved for a difficult boss. Special attacks would have powerful abilities such as:

Immortality: You are immune to damage for X amount of turns
Cleave: Deal a large amount of damage to all enemies
Wrath: Deal a large amount of elemental damage to all enemies
Rejuvenate: Restore a large amount of health/mana to all allies