Shadowstitch-
[AUTO]:(RC):[Put this unit on the bottom of your deck] At the end of the battle that your unit attacked a vanguard, if this unit boosted, and the attack did not hit, you may pay the cost. If you do, choose one of your units, and it gets [Power]+5000 until end of turn.
A shinobi's blade, will sometimes change form to defeat a bitter enemy.