Colfenor, the Last Yew + Gutter Grime + Viscera Seer

Colfenor, the Last Yew

Gutter Grime

Viscera Seer

How it works

1. Cast the creature card in your hand by paying 0.
2. Either that creature dies as a state-based action due to having zero toughness, or activate Viscera Seer by sacrificing that creature.
3. Gutter Grime triggers, putting a slime counter on it and creating a X/X Ooze creature token.
4. Activate Viscera Seer by sacrificing the Ooze.
5. When the Ooze dies, Colfenor triggers, returning the creature card from your graveyard to your hand.
6. Resolve the Viscera Seer abilities, scrying 1 each time.
7. Repeat.

This clever loop turns the stat-tracking of Gutter Grime and the sacrifice outlet of Viscera Seer into an engine for infinite value, completely fueled by the resilience of Colfenor, the Last Yew. By feeding your free-dying creatures into Viscera Seer, you trigger Gutter Grime to grow an Ooze token whose ever-increasing power and toughness eventually surpass the tiny stats of your recurred creature card. When that massive Ooze subsequently hits the graveyard, Colfenor's death trigger steps in to return your initial creature card right back to your hand, allowing you to repeat the cycle infinitely while sculpting your library with endless scry triggers.