Edgar Markov + Cloudstone Curio + Phyrexian Altar

Prerequisites

• You control a nontoken, nonartifact Vampire that can be cast using one colored mana.
• You have a nonartifact Vampire card in hand that can be cast using one colored mana.
• You have enough mana to cast the Vampire in hand.

Steps

1. 1Cast the nonartifact Vampire from your hand by paying its mana cost.
2. 2Edgar triggers, creating a 1/1 Vampire creature token.
3. 3The nontoken Vampire enters the battlefield, triggering Cloudstone Curio, returning any other nontoken, nonartifact Vampire that can be cast using one colored mana from the battlefield to your hand.
4. 4Activate Phyrexian Altar by sacrificing the Vampire token, adding one mana of any color.
5. 5Repeat.

Effects

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count