Krark-Clan Ironworks + Spine of Ish Sah + Sculpting Steel + Cheering Fanatic

Krark-Clan Ironworks

Spine of Ish Sah

Sculpting Steel

Cheering Fanatic

How it works

1. Declare Cheering Fanatic as an attacker, triggering its ability. Choose to name "Sculpting Steel".
2. Cast Sculpting Steel by paying 2 due to Cheering Fanatic. Choose to have it enter as a copy of Spine of Ish Sah.
3. When Sculpting Steel enters, its first ability triggers, destroying a permanent.
4. Activate Krark-Clan Ironworks by sacrificing Sculpting Steel, adding CC.
5. Sculpting Steel's second ability triggers, returning it from your graveyard to your hand.
6. Repeat from step 2.