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 triggers, and
Wayward Disciple triggers if it is on the battlefield.
Resolve the
Wayward Disciple trigger, if applicable, causing you to gain 1 life and an opponent to lose 1 life.
Resolve the
Sek'Kuar trigger, creating a 3/1 Graveborn creature token.
When the Graveborn enters the battlefield,
Pious Evangel triggers if it is on the battlefield, 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 triggers, and
Wayward Disciple triggers if it is on the battlefield.
Resolve the
Wayward Disciple trigger, if applicable, causing you to gain 1 life and an 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,
Pious Evangel triggers if it is on the battlefield, causing you to gain 1 life.
Resolve the
Warren Soultrader ability, creating a Treasure token.
Repeat.