Champion of the Weird + Dross Harvester + Sightless Ghoul

Champion of the Weird

Dross Harvester

Sightless Ghoul

How it works

1. Activate Champion of the Weird by paying 1 life and putting two -1/-1 counters on Sightless Ghoul.
2. Sightless Ghoul dies due to having 0 toughness, triggering its undying ability and Dross Harvester
3. Resolve the Dross Harvester trigger, causing you to gain 2 life.
4. Resolve the Sightless Ghoul trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
5. Resolve the Champion of the Weird ability from step 1, causing an opponent to blight 2.
6. Activate Champion of the Weird by paying 1 life and putting two -1/-1 counters on Sightless Ghoul, causing an opponent to blight 2.
7. Repeat.

This loop turns Dross Harvester into a life-generating engine that sustains an infinite cycle of pain, using Champion of the Weird to repeatedly shrink Sightless Ghoul until it perishes. Because Sightless Ghoul features undying, it returns to the battlefield with a +1/+1 counter that immediately resets its toughness, allowing it to survive the next onslaught while triggering Dross Harvester to offset the life payment. By continuously executing this sequence, you generate an endless cascade of enters-the-battlefield, leaves-the-battlefield, and death triggers to overwhelm your foes.