Agatha's Soul Cauldron + Deeproot Pilgrimage + Ioreth of the Healing House
Infinite ETB, Infinite creature tokens, Infinite untap of legendary creatures you control, Infinite mana legendary creatures you control can produce
Activate the nontoken Merfolk using Ioreth of the Healing House's ability by tapping it.
Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
Resolve the Merfolk's ability, untapping the other creature.
Activate the other creature using Ioreth of the Healing House's ability by tapping it, untapping the nontoken Merfolk.
Repeat.
Component Cards
How It Works
Activate the nontoken Merfolk using Ioreth of the Healing House's ability by tapping it.
Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
Resolve the Merfolk's ability, untapping the other creature.
Activate the other creature using Ioreth of the Healing House's ability by tapping it, untapping the nontoken Merfolk.
Repeat.