Champion of Valhalla

Berserk 2: You may choose to have this creature enter the battlefield with haste, Trample, and +2/+0. If you do sacrifice this creature at the end of your next upkeep.
{x}{p/b}{p/g}{p/r}: Champion of Valhalla gets +X/+0 and gains deathtouch and lifelink until end of turn.