Genghis Frog + Arcane Adaptation + Quina, Qu Gourmet

Genghis Frog

Arcane Adaptation

Quina, Qu Gourmet

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, creating a Mutagen token and a creature token due to Quina.
3. When the creature token enters as a Mutant due to Arcane Adaptation, Genghis Frog triggers, creating a Mutagen token and a creature token due to Quina.
4. Repeat step 3.