In the Commander variant, a double-faced card's color identity is determined by the mana costs and mana symbols in the rules text of both faces combined
Beast Energy #117 Pokemon Forbidden Light Keep track of your collection value over time
Illustrated by Tyler Jacobson Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
Not only does it weaken the team, but it can set you up to control them with Cyrus
In designing a card, I was pleased that the gillman could be so many different things
Another fine example is Phantump, whose official description notes, "After a lost child perished in the forest, their spirit possessed a tree stump, causing the spirit's rebirth as this Pokmon." Who could better understand Edvard Munch's "The Scream" than these Pokmon