Flayer of the Hatebound, Solemnity, and Ashnod's Altar

Prerequisites

• Flayer of the Hatebound on the battlefield
• Solemnity on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Flayer of the Hatebound, adding
2. Flayer of the Hatebound's undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to Solemnity
3. Flayer of the Hatebound enters the battlefield, dealing damage equal to its power to any target
4. Repeat

Results

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