Last Resort

A secret technique or move used voluntarily or involuntarily that the user had withheld previously in battle(they might not know that they can use it) that may have helped change the tide of battle.

For example Super Saiyan Goku, SSJ2 Gohan, Perfect Cell(Only characters with name Perfect Cell, not Cell(Perfect Form), Buutenks, Vegito, SSJ4 Goku, SSJ4 gogeta, Sprit Bomb Goku, Universal Spirit Bomb Goku, UI Goku and many more.