Ashnod's Altar + Wingrattle Scarecrow + Thran Vigil

Prerequisites

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Steps

1. 1Activate Ashnod's Altar by sacrificing Wingrattle Scarecrow.
2. 2When Wingrattle Scarecrow dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. 3Thran Vigil triggers, putting a +1/+1 counter on Wingrattle Scarecrow.
4. 4Repeat.

Effects

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers