Spider-Man India + Crystalline Crawler + Semblance Anvil + Whitemane Lion

Spider-Man India

Crystalline Crawler

Semblance Anvil

Whitemane Lion

How it works

1. Cast Whitemane Lion by paying .
2. Spider-Man India triggers, putting a +1/+1 counter on Crystalline Crawler.
3. When Whitemane Lion enters, it triggers, returning itself from the battlefield to your hand.
4. Activate Crystalline Crawler by removing a +1/+1 counter from it, adding .
5. Repeat.

This clever loop turns the self-bouncing nature of Whitemane Lion into a self-sustaining engine, powered entirely by the cost-reduction of Semblance Anvil. Because Semblance Anvil shaves {2} off your creature spells, you can cast Whitemane Lion for a mere single white mana. As it enters the battlefield, Whitemane Lion's own trigger forces it right back to your hand, while Spider-Man India takes advantage of that casting to handily buff Crystalline Crawler with a +1/+1 counter. You can then immediately cash in that counter using Crystalline Crawler's ability to generate the exact white mana needed to recast the Lion, letting you endlessly repeat the cycle to generate infinite storm count and endless enters-the-battlefield triggers.