Azelf is card #4 of 123 in Mysterious Treasures (2007), a Rare Holo illustrated by Ryo Ueda. At about $19.35 it is the #22 most valuable card in the set. In a Mysterious Treasures booster it turns up about once every 55 packs. It is one of 9 Azelf cards printed so far.
2007Mysterious Treasures
2008Legends Awakened
2013Plasma Blast
2018Forbidden Light
2019Unified Minds
2022Astral Radiance
2024Surging Sparks

















See the full Mysterious Treasures card list
An ungraded Azelf from Mysterious Treasures sells for about $19.35. A PSA 10 is worth more, roughly $155 by our estimate, and a PSA 9 around $54.18.
It is a Rare Holo, and it shows up about once every 55 Mysterious Treasures packs.
Ryo Ueda drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Mysterious Treasures 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.