Marth

First strike, Vigilance.

At the beginning of combat, you may choose up to one move:
•Dancing blade - Marth gains double strike until end of turn. Tap Marth at the end of combat.
•Counter - Until end of turn, Marth's power becomes 0 and the next time Marth takes damage from a source, deal twice that damage to the source instead. Tap Marth at the end of combat.