Prerequisites
- Adarkar Valkyrie on the battlefield
- Intruder Alarm on the battlefield
- Yahenni, Undying Partisan on the battlefield
- Adarkar Valkyrie does not have summoning sickness
- You control at least one additional nontoken creature
Steps
- Activate Adarkar Valkyrie by tapping it, targeting another nontoken creature you control
- Activate Yahenni by sacrificing the creature targeted in step 1
- When the creature dies, Adarkar Valkyrie triggers, returning the sacrificed creature from your graveyard to the battlefield
- When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures
- Resolve the Yahenni ability
- Repeat
Results
- Infinite LTB
- Infinite ETB
- Infinite sacrifice triggers
- Infinite death triggers
- Infinite untap of all creatures
- Infinite mana creatures you control can produce
Required Cards 3
Adarkar Valkyrie
Snow Creature — Angel
Yahenni, Undying Partisan
Legendary Creature — Aetherborn Vampire