Fathom Mage + Shabraz, the Skyshark + Archangel of Thune

Fathom Mage

Shabraz, the Skyshark

Archangel of Thune

How it works

1. Gain life.
2. Archangel of Thune triggers, putting a +1/+1 counter on each creature you control.
3. Fathom Mage triggers, causing you to draw a card.
4. Shabraz triggers, causing you to gain 1 life and put a +1/+1 counter on it
5. Repeat from step 2.

This self-sustaining loop spins into infinity the moment you gain any amount of life, thanks to the way Archangel of Thune acts as the ultimate catalyst. That initial life gain triggers the Archangel's passive lifelink-fueled blessing, placing a +1/+1 counter on Fathom Mage and waking up its evolve-style card drawing trigger. Drawing that card immediately rouses Shabraz, the Skyshark, which grants you a life and places a counter back on itself—which in turn loops right back into Archangel of Thune to restart the entire cascade.