Sek'Kuar, Deathkeeper | Warren Soultrader | Nether Traitor

(and one other card)

Activate
Warren Soultrader by sacrificing
Nether Traitor and paying 1 life.
When
Nether Traitor dies,
Sek'Kuar and
Elas il-Kor's second ability trigger.
Rsolve the
Elas il-Kor trigger, causing each opponent to lose 1 life.
Resolve the
Sek'Kuar trigger, creating a 3/1 Graveborn creature token.
When the Graveborn enters the battlefield,
Elas il-Kor's first ability triggers, causing you to gain 1 life.
Resolve the
Warren Soultrader ability, creating a Treasure token.
Activate the Treasure by tapping and sacrificing it, adding ({B} magic symbol) .
Activate
Warren Soultrader by paying 1 life and sacrificing the Graveborn.
When the Graveborn dies,
Nether Traitor and
Elas il-Kor's second ability trigger.
Resolve the
Elas il-Kor trigger, causing each opponent to lose 1 life.
Resolve the
Nether Traitor trigger, causing you to pay ({B} magic symbol) to return
Nether Traitor from your graveyard to the battlefield.
When
Nether Traitor enters the battlefield,
Elas il-Kor's first ability triggers, causing you to gain 1 life.
Resolve the
Warren Soultrader ability, creating a Treasure token.
Repeat.