Mortuary + Gray Merchant of Asphodel + Blasting Station + Gwenom, Remorseless Combo

Gray Merchant of Asphodel in hand or in your library (Gray Merchant of Asphodel on top of your library in your library).

All other permanents on the battlefield.

Your life total is at least 6 if Gray Merchant is on the top of your library, or you have available otherwise.

Gwenom has attacked this turn.

Cast Gray Merchant either from your hand by paying or from the top of your library by paying 5 life.

When Gray Merchant enters, it and Blasting Station trigger.

Resolve the Gray Merchant trigger, causing each opponent to lose life equal to your devotion to black and causing you to gain life equal to the life lost this way.

Resolve the Blasting Station trigger, untapping it.

Activate Blasting Station by tapping it and sacrificing Gray Merchant.

When Gray Merchant dies, Mortuary triggers, putting Gray Merchant from your graveyard onto the top of your library.

Resolve the Blasting Station ability.

Repeat.

Infinite creature LTB

Infinite creature ETB

Infinite creature sacrifice triggers

Infinite death triggers

Infinite damage

Infinite lifegain triggers

Infinite lifegain

Infinite lifeloss