Slobad, Actually Just Fine
Legendary Creature — Goblin Artificer3/3$41.26
You can sacrifice creatures and artifacts interchangeably. (If an effect asks you to sacrifice one of them, you can sacrifice either.) , , Sacrifice another artifact or creature: Put a rebuilding counter on Slobad. , Remove 3 Rebuilding Counters from Slobad: Create a token that's a copy of Bosh, Iron Golem.
Not legal in Commander