Junk Golem [Odyssey]

Set: Odyssey Type: Artifact Creature — Golem Rarity: Rare Cost: {4} Junk Golem enters the battlefield with three +1/+1 counters on it.At the beginning of your upkeep, sacrifice Junk Golem unless you remove a +1/+1 counter from it.{1}, Discard a card: Put a +1/+1 counter on Junk Golem.