Zellix, Sanity Flayer + Haunted One + Pith Driller + Krark-Clan Ironworks + Faces of the Past

Prerequisites

• Zellix does not have summoning sickness.
• Pith Driller does not have a +1/+1 counter on it.

Steps

1. 1Activate Zellix by paying and tapping it.
2. 2Haunted One triggers, causing all Horrors you control to get +2/+0 and undying until end of turn.
3. 3Resolve the Zellix ability, causing a player to mill three cards.
4. 4If the player milled a creature card this way, Zellix triggers, creating a 1/1 Horror creature token.
5. 5Activate Krark-Clan Ironworks by sacrificing Pith Driller, adding .
6. 6When Pith Driller dies, its undying ability and Faces of the Past trigger.
7. 7Resolve the Pith Driller trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
8. 8When Pith Driller enters the battlefield, it triggers, putting a -1/-1 counter on it.
9. 9Resolve the Faces of the Past trigger, untapping all Horrors.
10. 10Repeat.

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite power for certain creatures until end of turn
• Infinite self-mill
• Infinite untap of all Horrors
• Near-infinite creature tokens