Athreos, Shroud-Veiled + Phyrexian Altar + Reluctant Role Model

Prerequisites

• There is a coin counter on any creature you control except Athreos.
• You control at least one additional nontoken creature if Reluctant Role Model is the only creature you control with a coin counter on it.

Steps

1. 1Activate Phyrexian Altar by sacrificing the creature with a coin counter on it, adding one mana of any color.
2. 2When the creature dies, Athreos's second ability and Reluctant Role Model's second ability trigger.
3. 3Resolve the Athreos trigger, returning the creature from your graveyard to the battlefield.
4. 4Resolve the Reluctant Role Model trigger, putting a coin counter on it if it wasn't the creature that was sacrificed, or another nontoken creature you control otherwise.
5. 5Repeat.

Effects

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