Show of Skill

The Show of Skill is a special post-game Keyblade given in Kingdom Hearts: Cobalt Perspective if all bosses in the game are completed using the Kingdom Key.

Description
'A blue version of your average Kingdom Key, it seems worn and torn but you feel empowered by it.'

Ability
Hope never flees the battle! -- If HP is low, you can use up MP ( via tapping Limit button) to emit a massive extremely high damaging nova around you, and health is healed according to damage done (excluding overkill damage).

Usage & Description
The Show of skill is worn out version of the Kingdom Key with the Blade in particular emitting a cyan glow. Although overpowered, it is balanced out by the precautions neccesary to obtain it and does not contribute to 100% completion due to that fact.