Peregrin Took + Basking Broodscale + Arbaaz Mir + Light of Promise

Peregrin Took

Basking Broodscale

Arbaaz Mir

Light of Promise

How it works

1. Gain life.
2. Basking Broodscale triggers, putting a +1+1 counter on itself.
3. Basking Broodscale triggers, creating a creature token and an artifact token.
4. When the artifact token enters the battlefield, Arbaaz Mir triggers, dealing 1 damage to each opponent and causing you to gain 1 life.
5. Repeat from step 2.

This wondrous loop spins itself into infinity the moment you gain a scrap of life, turning Basking Broodscale into an unstoppable engine of growth. As Light of Promise translates that lifegain into fresh +1/+1 counters for Basking Broodscale, the Broodscale's own triggered ability fires in response, spitting out an Eldrazi Spawn token alongside the extra Food token graciously provided by Peregrin Took's replacement effect. That blooming artifact arrival immediately rouses Arbaaz Mir to deal damage and replenish your life total, which loops right back into Light of Promise to keep the cycle turning endlessly.