Cavalier of Night + Activated Sleeper + Blasting Station Combo

Activated Sleeper in your graveyard.

Cavalier of Night and Blasting Station on the battlefield.

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.

Infinite damage

Infinite death triggers

Infinite creature ETB

Infinite creature LTB

Infinite creature sacrifice triggers