Cauldron of Souls, Dross Scorpion, Blasting Station, and Biotransference

Prerequisites

• Cauldron of Souls on the battlefield
• Dross Scorpion on the battlefield
• Blasting Station on the battlefield
• Biotransference on the battlefield
• An opponent was dealt damage this turn
• The creature with bloodthirst does not have a -1/-1 counter on it

Steps

1. Activate Cauldron of Souls by tapping it, giving the creature with bloodthirst persist until end of turn
2. Activate Blasting Station by tapping it and sacrificing the creature with bloodthirst
3. When the creature dies, its persist ability and Dross Scorpion trigger
4. Resolve the persist trigger, returning the creature from your graveyard to the battlefield, which enters the battlefield with at least one +1/+1 counter on it due to its bloodthirst ability
5. When the creature enters the battlefield, Blasting Station triggers, untapping Blasting Station
6. Resolve the Dross Scorpion trigger, untapping Cauldron of Souls
7. Resolve the Blasting Station ability from step 2, dealing 1 damage to any target
8. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite damage