Mikaeus, the Unhallowed + Luminous Broodmoth + Phyrexian Altar

Prerequisites

• You control another nontoken creature that is not a Human and does not have flying.

Steps

1. 1Activate Phyrexian Altar by sacrificing the creature, adding one mana of any color.
2. 2When the creature dies, its undying ability triggers if it didn't have a +1/+1 counter, and Luminous Broodmoth triggers if the creature didn't have flying.
3. 3Resolve the undying trigger, if applicable, returning the creature from your graveyard to the battlefield with a +1/+1 counter on it.
4. 4Resolve the Luminous Broodmoth trigger, if applicable, returning the creature from your graveyard to the battlefield with a flying counter on it if the creature is still in your graveyard.
5. 5Repeat.

Effects

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