Slobad, Actually Just Fine
Legendary Creature — Goblin Artificer, {1}{B}{R}
Oracle Text
You can sacrifice creatures and artifacts interchangeably. (If an effect asks you to sacrifice one of them, you can sacrifice either.)
{1}, {T}, Sacrifice another artifact or creature: Put a rebuilding counter on Slobad.
{T}, Remove 3 Rebuilding Counters from Slobad: Create a token that's a copy of Bosh, Iron Golem.