Prowling Geistcatcher + Kiki-Jiki, Mirror Breaker + Viscera Seer

Prowling Geistcatcher

Kiki-Jiki, Mirror Breaker

Viscera Seer

How it works

1. Activate Kiki-Jiki by tapping it, creating a token copy of Prowling Geistcatcher with haste.
2. Activate Viscera Seer by sacrificing Kiki-Jiki.
3. When Kiki-Jiki dies, the nontoken and token Prowling Geistcatcher's first abilities trigger.
4. Resolve the token Prowling Geistcatcher's trigger, exiling Kiki-Jiki from your graveyard.
5. Resolve the nontoken Prowling Geistcatcher's trigger, doing nothing.
6. Resolve the Viscera Seer ability, causing you to scry 1.
7. Activate Viscera Seer by sacrificing the Prowling Geistcatcher token.
8. When the token Prowling Geistcatcher dies, its second ability and the nontoken Prowling Geistcatcher's first ability triggers.
9. Resolve the nontoken Prowling Geistcatcher trigger, putting a +1/+1 counter on it.
10. Resolve the token Prowling Geistcatcher trigger, returning Kiki-Jiki from exile to the battlefield.
11. Resolve the Viscera Seer ability, causing you to scry 1.
12. Repeat.

This loop relies on an intricate shell game between a real creature and its cloned copy, all orchestrated by Viscera Seer. You use Kiki-Jiki, Mirror Breaker to duplicate Prowling Geistcatcher, creating a token that can immediately sacrifice itself to Viscera Seer along with the original. Because Prowling Geistcatcher's exile and return triggers track each card independently, sacrificing the token triggers its death ability to return Kiki-Jiki, Mirror Breaker back to the battlefield while the surviving Prowling Geistcatcher grows fat with permanent +1/+1 counters.