Color Identity: B

Initial Card State
- Activated Sleeper in your graveyard.
- Cavalier of Night and Blasting Station on the battlefield.
Steps
- Activate Blasting Station by tapping it and sacrificing Cavalier of Night.
- When Cavalier of Night dies, it triggers, returning Activated Sleeper from your graveyard to the battlefield as a copy of Cavalier of Night.
- When Activated Sleeper enters the battlefield, its first triggered ability from Cavalier of Night triggers and Blasting Station triggers.
- Resolve Activated Sleeper's ability, choosing not to sacrifice a creature.
- Resolve the Blasting Station ability from step 3, untapping it.
- Resolve the Blasting Station ability from step 1, dealing 1 damage to any target.
- Activate Blasting Station by tapping it and sacrificing Activated Sleeper.
- When Activated Sleeper dies, its last ability from Cavalier of Night triggers, returning itself from your graveyard to the battlefield as a copy of Cavalier of Night.
- When Activated Sleeper enters the battlefield, it triggers and Blasting Station triggers.
- Resolve Activated Sleeper's ability, choosing not to sacrifice a creature.
- Resolve the Blasting Station ability from step 9, untapping it.
- Resolve the Blasting Station ability from step 7, dealing 1 damage to any target.
- Repeat from step 5.
Results
- Infinite damage.
- Infinite death triggers.
- Infinite ETB.
- Infinite LTB.
- Infinite sacrifice triggers.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).