Garbage Elemental
{4}{R}Creature — Elemental Rigger
When this creature enters, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.) Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)