M-Power is great for powering up your other character's Area of Effect attacks. That's what i most use it for.
Speaking of M-Power... the more i think about it, the more i feel like Mario is among the worst late-game characters.
- His movement range is AT LEAST 1 shorter than most other characters (peach, Luigi, rabbid peach, rabbid luigi) - which means that you
constantly need to pay attention not to move out of Mario's puny movement range, as to not miss out on a stomp attack.
- He can only do one slide, and that one doesn't even do a lot of damage.
- His stomp attack maxes out at 150 damage, which is pretty pathetic in the late game.
- His Area of Effect attack is meelee, but he isn't particularly tanky
- With Overwatch becoming less useful throughout the later game (teleporting enemies), having his strongest weapons to be HONEY (which prevents the enemy from moving and thereby makes overwatch obsolete) and PUSH (which, if you shoot an enemy at max range will push them further away, so overwatch won't trigger)
... He's the among the worst characters in his own game, imho.