Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Luminous Broodmoth + Ashnod's Altar

Prerequisites

• You control another nontoken creature with base toughness 2 or greater that does not have flying.

Steps

1. 1Activate Ashnod's Altar by sacrificing another nontoken creature that doesn't have flying.
2. 2When the creature dies, Luminous Broodmoth triggers, returning the creature from your graveyard to the battlefield with a flying counter on it.
3. 3Activate Ashnod's Altar by sacrificing the creature with a flying counter on it.
4. 4When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5. 5Repeat.

Effects

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