Prowling Geistcatcher + Karmic Guide + Carrion Feeder

Prerequisites

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Steps

1. 1Activate Carrion Feeder by sacrificing Karmic Guide.
2. 2When Karmic Guide dies, Prowling Geistcatcher's first ability triggers, exiling Karmic Guide from your graveyard.
3. 3Activate Carrion Feeder by sacrificing Prowling Geistcatcher.
4. 4When Prowling Geistcatcher dies, its second ability triggers, returning Karmic Guide from exile to the battlefield.
5. 5When Karmic Guide enters the battlefield, it triggers, returning Prowling Geistcatcher from your graveyard to the battlefield.
6. 6Resolve the Carrion Feeder abilities from step 1 and step 3, putting two +1/+1 counters on it.
7. 7Repeat.

Effects

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers