CMR: Opposition Agent (Extended Art) (Foil) Core Set 2021 and complete habitat cards to

and complete habitat cards to fill in different environments in Cascadia

All of the cards in the original Hidden Arsenal series were either Super Rares or Secret Rares

This spell costs {X} less to cast

you may put it into its owner's library third from the top

Singer-songwriter and producer

CMR: Opposition Agent (Extended Art) (Foil) Core Set 2021 and complete habitat cards toFlash You control your opponents while they're searching their libraries. While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.