Arcbound Reclaimer + Chromatic Star + Tarrian's Soulcleaver + Krark-Clan Ironworks

Arcbound Reclaimer

Chromatic Star

Tarrian's Soulcleaver

Krark-Clan Ironworks

How it works

1. Cast Chromatic Star by paying 1.
2. Activate Krark-Clan Ironworks by sacrificing Chromatic Star, adding CC.
3. Tarrian's Soulcleaver and Chromatic Star trigger.
4. Resolve the Tarrian's Soulcleaver trigger, putting a +1/+1 counter on Arcbound Reclaimer.
5. Holding priority, activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Chromatic Star from your graveyard onto the top of your library.
6. Resolve the Chromatic Star trigger, causing you to draw it from the top of your library.
7. Repeat.