Showdown of the Skalds + Crystalline Crawler + Horned Kavu + Pir, Imaginative Rascal

Showdown of the Skalds

Crystalline Crawler

Horned Kavu

Pir, Imaginative Rascal

How it works

1. Cast Horned Kavu, putting 2 +1/+1 counter on Crystalline Crawler with Showdown of the Skalds.
2. Remove 2 +1/+1 counter from Crystalline Crawler to add .
3. Horned Kavu triggers, returning itself to your hand.
4. Repeat.

This fascinating loop turns Showdown of the Skalds into an engine for infinite mana-neutral casting by leveraging the continuous card access from its first chapter. Every time you cast Horned Kavu, the Saga's second chapter triggers to grow your board, but Pir, Imaginative Rascal steps in to supercharge those counters—ensuring Crystalline Crawler gets multiple +1/+1 counters instead of just one. You can then peel those extra counters right off Crystalline Crawler to generate the red and green mana needed to pay for the Kavu again. Finally, Horned Kavu's own mandatory entry trigger bounces itself back to your hand, resetting the loop and letting you recast it endlessly for infinite storm and entry triggers.