Zinnia, Valley's Voice + Cloud of Faeries + Shrieking Drake + Semblance Anvil

Zinnia, Valley's Voice

Cloud of Faeries

Shrieking Drake

Semblance Anvil

How it works

1. Cast Cloud of Faeries with offspring by paying 1 using the cost reduction from Semblance Anvil.
2. When Cloud of Faeries enters, its own ability and its offspring ability trigger.
3. Resolve the Cloud of Faeries abilities, untapping two lands.
4. Resolve the offspring ability, creating a token copy of Cloud of Faeries.
5. When the token copy of Cloud of Faeries enters, its ability triggers, untapping two lands.
6. Activate four lands by tapping them, adding 2.
7. Cast Shrieking Drake with offspring by paying , using cost reduction from Semblance Anvil.
8. When Shrieking Drake enters, its own ability and its offspring ability trigger.
9. Resolve the Shrieking Drake ability, returning the nontoken Cloud of Faeries to its owner's hand.
10. Resolve the offspring ability, creating a token copy of Shrieking Drake.
11. When the token copy of Shrieking Drake enters, its ability triggers, returning the nontoken Shrieking Drake to its owner's hand.
12. Repeat.

This loop relies on cost reduction and clever bouncing to turn your creatures into a self-sustaining mana engine. With Semblance Anvil already exiling a creature card to make creature spells cost {2} less, both Cloud of Faeries and Shrieking Drake can be cast with their offspring costs completely negated, turning them into free spells that generate extra bodies. As these creatures flood the board, the mana generated from Cloud of Faeries untapping your lands outpaces the cost to replay everything. Meanwhile, Shrieking Drake's enter-the-battlefield trigger bounces your original creatures back to your hand so you can cast them all over again. Zinnia, Valley's Voice acts as the ultimate payoff, swelling in power with every new 1/1 token created and granting offspring to every creature spell you cast in the first place.