Araumi of the Dead Tide + Panharmonicon + Gray Merchant of Asphodel

Araumi of the Dead Tide

Panharmonicon

Gray Merchant of Asphodel

How it works

1. Activate Araumi by tapping it and exiling three cards from your graveyard, giving Gray Merchant encore until end of turn.
2. Activate Gray Merchant's encore ability by paying 3 and exiling it from your graveyard, creating at least three token copies of it with haste.
3. The Gray Merchants enter the battlefield, triggering their abilities twice each.
4. Resolve the first Gray Merchant ability, causing each opponent to lose at least seven life and you to gain at least seven life.
5. Repeat step 4 for each remaining Gray Merchant trigger.