Krasis Incubation + Crystalline Crawler + Zirda, the Dawnwaker + Semblance Anvil + Doubling Season

Krasis Incubation

Crystalline Crawler

Zirda, the Dawnwaker

Semblance Anvil

Doubling Season

How it works

1. Activate Krasis Incubation by paying and returning it to your hand, putting four +1/+1 counters on Crystalline Crawler.
2. Activate Crystalline Crawler's first ability four times by removing four +1/+1 counters from it, adding .
3. Cast Krasis Incubation by paying due to Semblance Anvil, attaching it to Crystalline Crawler.
4. Repeat.

This clever loop relies on Zirda, the Dawnwaker and Semblance Anvil working in tandem to slash the activation and casting costs of Krasis Incubation down to a mere {G}{U}, allowing you to repeatedly return the Aura to your hand. As you bounce and replay it, Krasis Incubation pumps up Crystalline Crawler with counters, which Doubling Season magnifies into a surplus of growth. You can then cash those very same counters back in using Crystalline Crawler's mana ability to fund the next iteration of the loop, generating infinite casts for your storm count.