Leveler + Lembas + Krark-Clan Ironworks

Leveler

Lembas

Krark-Clan Ironworks

How it works

1. Cast Leveler by paying 5.
2. When Leveler enters the battlefield, it triggers, causing you to exile your library.
3. Activate Krark-Clan Ironworks by sacrificing Leveler, adding CC.
4. Cast Lembas by paying 2.
5. When Lembas enters the battlefield, its first ability triggers.
6. Holding priority, activate Krark-Clan Ironworks by sacrificing Lembas, adding CC.
7. Lembas' third ability triggers, shuffling it into your library from your graveyard.
8. Resolve the Lembas trigger from step 5, causing you to scry 1 and draw Lembas from the top of your library.
9. Repeat from step 4.