Team Aqua's Muk is card #8 of 34 in Double Crisis (2015), a Rare Holo illustrated by Kouki Saitou. At about $2.51 it is the #31 most valuable card in the set. In a Double Crisis booster it turns up about once every 7 packs. It is one of 32 Muk cards printed so far.
1999Fossil
2002Legendary Collection
2006Legend Maker
2009Platinum
2013Plasma Freeze
2015Double Crisis
2017Burning Shadows
2022Brilliant Stars

















See the full Double Crisis card list
An ungraded Team Aqua's Muk from Double Crisis sells for about $2.51. A PSA 10 is worth more, roughly $12.55 by our estimate, and a PSA 9 around $5.77.
It is a Rare Holo, and it shows up about once every 7 Double Crisis packs.
Kouki Saitou drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Double Crisis booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.