Calix, Guided by Fate + Three Blind Mice + Doubling Season

Calix, Guided by Fate

Three Blind Mice

Doubling Season

How it works

1. Deal combat damage to an opponent using Calix.
2. Calix's second ability triggers, creating two token copies of Three Blind Mice.
3. The Three Blind Mice tokens enter the battlefield with two lore counters on them due to Doubling Season, triggering their first and second chapter abilities, as well as Calix's first ability twice.
4. Resolve both Calix triggers, putting two +1/+1 counters on a creature you control.
5. Resolve the first Three Blind Mice triggers, creating four 1/1 Mouse creature tokens.
6. Resolve the next Three Blind Mice trigger, creating two token copies of a Three Blind Mice token.
7. Repeat from step 3.
8. Once you have infinite Three Blind Mice triggers, you may use them to copy any token(s) you control.

This intricate loop kicks off when Calix, Guided by Fate deals combat damage to an opponent, triggering its ability to copy a nonlegendary enchantment. Because Doubling Season is on the battlefield, that single trigger instead yields two token copies of Three Blind Mice, which instantly double their own incoming lore counters to jump right into their chapter abilities. Those unfolding chapters create a cascade of Mouse tokens and further copies of Three Blind Mice, while Calix, Guided by Fate simultaneously heaps endless +1/+1 counters onto your creatures thanks to its constellation triggers. The result is an exponentially expanding engine that floods the board with infinite creature tokens, infinite ETBs, and infinite copies of any token you desire.