Mewtwo δ is card #24 of 110 in Holon Phantoms (2006), a Rare illustrated by Ryo Ueda. At about $215 it is the #11 most valuable card in the set. In a Holon Phantoms booster it turns up about once every 32 packs. It is one of 89 Mewtwo cards printed so far.
1 copy has been graded by players in Holobrook's grading game. None has come back a 10 yet.
POP 1 is still open for PSA, BGS and CGC: the first player to grade this card a 10 with each company gets a one-of-a-kind POP 1 slab. See the Mint
1999Base Set
2003Ruby & Sapphire
2006Holon Phantoms
2009Pokémon Rumble
2015BREAKthrough
2019Unified Minds
2023Crown Zenith
202630th Celebration

















See the full Holon Phantoms card list
An ungraded Mewtwo δ from Holon Phantoms sells for about $215. A PSA 10 is worth more, roughly $2,799 by our estimate, and a PSA 9 around $861.
It is a Rare, and it shows up about once every 32 Holon Phantoms packs.
Ryo Ueda drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Holon Phantoms 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.