Yenna, Redtooth Regent + Peregrin Took + Krark-Clan Ironworks + Faith Healer

Yenna, Redtooth Regent

Peregrin Took

Krark-Clan Ironworks

Faith Healer

How it works

1. Activate Yenna by paying 2 and tapping it, creating a token copy of an Aura you control and a Food artifact token, then untapping Yenna and causing you to scry 2.
2. Activate Krark-Clan Ironworks by sacrificing the Food, adding CC.
3. Activate Faith Healer by sacrificing the Aura token, causing you to gain life equal to the Aura's mana value.
4. Repeat.