Slobad, Actually Just Fine [Un-Known Event Playtest Cards]

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.