Undyne

Info
Undyne is a character from Undertale. She is the leader of the Royal Guard and trained Papyrus to fight.

ATK: Spear of Justice
Put 4 coins down and cover them up with your hand. Your opponent guesses whether the coins are heads or tails. If they guess wrong, deal 2 damage to the defending character.

ABL: Determination
When Undyne is K.O.'d, you may upgrade Undyne into Undyne the Undying. If you do, heal all damage from this character.

Tips

 * If you divine from what you know of your opponent, Spear of Justice can deal 8 damage every time. This won't work when battling strangers, though.