Basking Broodscale + Soul's Attendant + Heliod, Sun-Crowned

Basking Broodscale

Soul's Attendant

Heliod, Sun-Crowned

How it works

1. Gain life.
2. Heliod triggers, putting a +1/+1 counter on Basking Broodscale.
3. Basking Broodscale triggers, creating a creature token.
4. When the creature token enters the battlefield, Soul's Attendant triggers, causing you to gain 1 life.
5. Repeat from step 2.

This elegant loop turns a single instance of life gain into an unstoppable engine by leveraging a closed-loop trigger chain between three key permanents. Once Heliod, Sun-Crowned receives that initial spark of life gain, it places a +1/+1 counter on Basking Broodscale, whose own triggered ability responds by spawning a colorless Eldrazi token. As that token enters the battlefield, Soul's Attendant catches the event to reward you with life, which immediately feeds right back into Heliod's ability to restart the entire sequence.