Oathkeeper, Takeno's Daisho [Champions of Kamigawa] Innistrad where X is that creature's

where X is that creature's mana value

Sacrifice Banewhip Punisher: Destroy target creature that has a -1/-1 counter on it

and the howl in its throat

Set: Commander 2014 Type: Enchantment Rarity: Rare Cost: {2}{G} Whenever a creature you control attacks

a legendary 4/4 green Elemental creature token

Oathkeeper, Takeno's Daisho [Champions of Kamigawa] Innistrad where X is that creature'sSet: Champions of Kamigawa Type: Legendary Artifact Equipment Rarity: Rare Cost: {3} Equipped creature gets +3 +1. Whenever equipped creature dies, return that card to the battlefield under your control if it's a Samurai card. When Oathkeeper, Takeno's Daisho is put into a graveyard from the battlefield, exile equipped creature. Equip {2}