Genghis Frog + Chatterfang, Squirrel General + Artificial Evolution

Genghis Frog

Chatterfang, Squirrel General

Artificial Evolution

How it works

1. Cast Genghis Frog either from your hand or from the command zone by paying plus commander tax if applicable
2. When Genghis Frog enters, it triggers.
3. Holding priority, cast Artificial Evolution by paying its mana cost, changing all instances of "Mutant" on Genghis Frog to "Squirrel".
4. Resolve the Genghis Frog ability, creating a Mutagen token and a 1/1 Squirrel creature token due to Chatterfang.
5. When the Squirrel enters, Genghis Frog triggers, creating a Mutagen token and a 1/1 Squirrel creature token due to Chatterfang.
6. Repeat step 5.