Void Maw, Fatestitcher, and Carrion Feeder

Prerequisites

• Void Maw on the battlefield
• Fatestitcher in the graveyard
• Carrion Feeder on the battlefield

Steps

1. Activate the mana-producing permanent by tapping it, adding
2. Activate Fatestitcher's unearth ability by paying , returning it from your graveyard to the battlefield and giving it haste until end of turn
3. Activate Fatestitcher by tapping it, untapping the mana-producing permanent
4. Activate Carrion Feeder by sacrificing Fatestitcher
5. Choose to exile Fatestitcher using Void Maw's replacement effect instead of Fatestitcher's
6. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it
7. Activate Void Maw by putting Fatestitcher from exile into your graveyard, giving Void Maw +2/+2 until end of turn
8. Repeat

Results

• Infinite +1/+1 counters on Carrion Feeder
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinitely large Void Maw until end of turn
• Infinite sacrifice triggers