Chainer, Dementia Master + Su-Chi + Chromatic Orrery + Verdant Sun's Avatar + Goblin Bombardment

Chainer, Dementia Master

Su-Chi

Chromatic Orrery

Verdant Sun's Avatar

Goblin Bombardment

How it works

1. Activate Goblin Bombardment by sacrificing Su-Chi.
2. When Su-Chi dies, it triggers, adding CCCC.
3. Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
4. Activate Chainer by paying 3 and 3 life, returning Su-Chi to the battlefield from your graveyard.
5. When Su-Chi enters the battlefield, Verdant Sun's Avatar triggers, causing you to gain life equal to Su-Chi's toughness.
6. Repeat.

This intricate loop relies on Chainer, Dementia Master to continuously dredge Su-Chi out of the graveyard by paying black mana and life, turning it into a Nightmare in the process. Each time you sacrifice Su-Chi to Goblin Bombardment for a point of damage, its death triggers a massive influx of colorless mana that Chromatic Orrery then filters into any color you need. Meanwhile, Verdant Sun's Avatar ensures your life total stays comfortably in the black by constantly padding your health every time Su-Chi returns to the battlefield.