[Makata]

Step 1: Never listen to what Makata has to say.

Step 2: In fact, whatever he says, the opposite is probably infallible truth.

In all seriousness, 2 ideas that I thought of (maybe already exist in some game, no idea):

- Mana Fatigue. The concept of a finite mana bar in which with 150 mana you can cast a full power high damage fireball but with 149 you can't do anything is just rubbish. Theres plenty of ways to implement this but in general, casting increases your fatigue, the more fatigue you have the worse your spells get in some capacity and you lose fatigue based either on time or time spent not casting.

- Real Time Combat. I personally despise the hp system as well as it never made any sense to me that some mob could slam his swords into your flesh for several minutes and these heal spells all completely undo it regardless of how or where he hits you. Something along the lines of having to click buttons to manually avoid / dodge / parry each and every blow or else die (since being stabbed in the chest is lethal, period) might be twitch gameplay but far far more realistic.