Cyrus (Japanese: アカギ♢ Akagi♢) is a Supporter card. It is part of the Ultra Prism expansion.
Your opponent chooses 2 Benched Pokémon and shuffles the others, and all cards attached to them, into their deck.
This card received an erratum that corrected the restrictions on playing the card. It can only be played if the player's Active Pokémon is a or Pokémon.
Cyrus is the boss of Team Galactic in Pokémon Diamond, Pearl, and Platinum. The requirement for a or Active Pokémon most likely refer to the types of Palkia and Dialga, both of which Cyrus tried to control at some point.