Abandoned Sarcophagus + Humility + Hollow One + Krark-Clan Ironworks

Abandoned Sarcophagus

Humility

Hollow One

Krark-Clan Ironworks

How it works

1. Cast Hollow One either from your hand or from your graveyard by paying at most 1.
2. Activate Krark-Clan Ironworks by sacrificing Hollow One, adding CC.
3. If you cast Hollow One from your graveyard, Hollow One is not exiled by Abandoned Sarcophagus due to Humility removing Hollow One's cycling ability.
4. Repeat.

This ingenious loop relies on a brilliant rules interaction where Humility strips away Hollow One's printed cycling ability, ensuring that when it is sacrificed, Abandoned Sarcophagus fails to recognize it as a cycling card and leaves it safely in the graveyard rather than exiling it. This lets you endlessly recast the creature for free, since Krark-Clan Ironworks conveniently refunds two colorless mana—more than enough to cover the discounted cost—while generating infinite artifacts to sacrifice and endless death triggers.