Athreos, Shroud-Veiled + Resourceful Defense + Ashnod's Altar

Prerequisites

• You control at least two additional nontoken creatures, one of which has a coin counter on it.

Steps

1. 1Activate Ashnod's Altar by sacrificing the creature with a coin counter on it.
2. 2When the creature dies, Resourceful Defense and Athreos trigger.
3. 3Resolve the Resourceful Defense trigger, putting a coin counter on another nontoken creature you control.
4. 4Resolve the Athreos trigger, returning the creature that died in step 1 from your graveyard to the battlefield.
5. 5Repeat.

Effects

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