Gravecrawler + Carnival of Souls + Falkenrath Noble + Night of Souls' Betrayal

Gravecrawler

Carnival of Souls

Falkenrath Noble

Night of Souls' Betrayal

How it works

1. Cast Gravecrawler from your graveyard by paying .
2. Gravecrawler enters the battlefield and dies as a state-based action due to having zero toughness.
3. Carnival of Souls and Falkenrath Noble trigger.
4. Resolve the Falkenrath Noble trigger, causing target opponent to lose 1 life and you to gain 1 life.
5. Resolve the Carnival of Souls trigger, causing you to lose 1 life and add .
6. Repeat.