Mega Venusaur ex is card #155 of 132 in Mega Evolution (2025), a Ultra Rare. At about $10.80 it is the #18 most valuable card in the set. In a Mega Evolution booster it turns up about once every 262 packs. It is one of 48 Venusaur 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
2004FireRed & LeafGreen
2006Crystal Guardians
2012Dark Explorers
2016Evolutions
2020Champion's Path
2022Pokémon GO
2025Mega Evolution

















See the full Mega Evolution card list
An ungraded Mega Venusaur ex from Mega Evolution sells for about $10.80. A PSA 10 is worth more, roughly $37.80 by our estimate, and a PSA 9 around $21.60.
It is a Ultra Rare, and it shows up about once every 262 Mega Evolution packs.
Yes, as a digital simulator. Holobrook lets you open Mega Evolution 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.