Mega Gengar ex is card #269 of 217 in Ascended Heroes (2026), a MEGA_ATTACK_RARE illustrated by Taiga Kasai. In an Ascended Heroes booster it turns up about once every 361 packs. It is one of 53 Gengar cards printed so far.
1999Fossil
2003Skyridge
2007Diamond & Pearl
2010HS—Triumphant
2016Generations
2020Sword & Shield
2023151
202630th Celebration

















See the full Ascended Heroes card list
It is a MEGA_ATTACK_RARE, and it shows up about once every 361 Ascended Heroes packs.
Taiga Kasai drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Ascended Heroes 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.