Phyrexian Dreadnought [Mirage] 231 Morph {U} (You may cast

Morph {U} (You may cast this card face down as a 2/2 creature for {3}

Set: Commander 2014 Type: Instant Rarity: Rare Cost: {1}{U} Return target nonland permanent you don't control to its owner's hand

Set: McDonald's Promos: 2014 Collection Type: Grass Rarity: Promo Retreat cost: Colorless

Set: Diamond & Pearl: Base Set Type: Lightning Rarity: Promo Retreat cost: Colorless

so here's a second one

Phyrexian Dreadnought [Mirage] 231 Morph {U} (You may castSet: Mirage Type: Artifact Creature Phyrexian Dreadnought Rarity: Rare Cost: {1} Trample When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.