How about adding something similar to a limit break into the game?
Recharges once a day/week at a cost of a few energy something special happens. Clear the screen of enemies? a massive attack on a single target? A small cut scene and then damage? a little bit of magic to spice up the game with some high level equipment.
On a similar note how about summoning? Again with a screen clearing or massive single attack. I'm thinking FFVII style single attacks rather than a pet/mech knight.
i find it hard to believe that this is a serious suggestion
no