Prerequisites
- Marina Vendrell on the battlefield
- Thornbite Staff on the battlefield
- Spiked Corridor // Torture Pit on the battlefield
- Phyrexian Altar on the battlefield
- Marina does not have summoning sickness
- Thornbite Staff attached to Marina
- Spiked Corridor is locked
Steps
- Activate Marina by tapping it, unlocked Spiked Corridor
- Spiked Corridor triggers, creating three 1/1 Devil creature tokens
- Activate Phyrexian Altar by sacrificing a Devil, adding one mana of any color
- When the Devil dies, it and Marina trigger
- Resolve the Devil's trigger, dealing 1 damage to any target
- Resolve the Marina trigger, untapping it
- Activate Marina by tapping it, locking Spiked Corridor
- Repeat steps 3 through 6 one additional time
- Repeat from step 1
Results
- Infinite LTB
- Infinite ETB
- Infinite colored mana
- Infinite sacrifice triggers
- Infinite death triggers
- Infinite damage
Required Cards 4
Marina Vendrell
Legendary Creature — Human Warlock
Thornbite Staff
Kindred Artifact — Shaman Equipment
Spiked Corridor // Torture Pit
Enchantment — Room // Enchantment — Room