Mismagius is Pokédex #429, generation 4 (Sinnoh). Mismagius GL LV.X is a Level-Up SP Psychic Pokémon with 100 HP. The card lists level X. The card says it evolves from Mismagius GL. In this catalog that name is Mismagius (#429).
Mismagius GL LV.X sits at 110/111 in Rising Rivals, position 110 of 120. Before it is 109 Luxray GL LV.X, and after it is 111 Snorlax LV.X. The set belongs to the Platinum series. It was released on 16 May 2009. The printed size is 111. This checklist is longer, at 120 cards. The listed rarity is Rare Holo LV.X.
Magical Return is listed as Poké-Power. As often as you like during your turn (before your attack), you may return a Pokémon Tool or Technical Machine card attached to your Pokémon to your hand. This power can't be used if Mismagius GL is affected by a Special Condition. The attack Darkness Magic lists no damage number. The cost is Psychic, Psychic, Colorless. Count the number of cards in your hand. Put that many damage counters on the Defending Pokémon. You can't put more than 8 damage counters in this way. Weakness is Darkness ×2. Resistance is Colorless -20. Retreat cost is 1. The card text says: Put this card onto your Active Mismagius GL. Mismagius GL LV.X can use any attack, Poké-Power, or Poké-Body from its previous level.
Mismagius (#429) has 20 other cards in the catalog. Those other cards are in 17 sets. The other printings with a release date run from 2007 to 2026. The earliest other card is Mismagius 10/130 in Diamond & Pearl (2007). That card is named Mismagius, while this one is Mismagius GL LV.X. That card lists 90 HP, and this one lists 100 HP. The rarity there is Rare Holo, and here it is Rare Holo LV.X. Mikiko Takeda illustrated that card, and Kent Kanetsuna illustrated this one. 19 other cards of Mismagius list a different HP.
The illustrator line reads Kent Kanetsuna. I count 74 other cards in the catalog with that illustrator.
Rising Rivals set binder is where a full Rising Rivals set goes. This card fills one slot there. A generation binder holds one card of each species. Mismagius can fill a slot in Generation 4 binder (Sinnoh). Themed lists that include this exact card are Pokémon LV.X. I still need this card.
As often as you like during your turn (before your attack), you may return a Pokémon Tool or Technical Machine card attached to your Pokémon to your hand. This power can't be used if Mismagius GL is affected by a Special Condition.
Count the number of cards in your hand. Put that many damage counters on the Defending Pokémon. You can't put more than 8 damage counters in this way.
Put this card onto your Active Mismagius GL. Mismagius GL LV.X can use any attack, Poké-Power, or Poké-Body from its previous level.
Rising Rivals, in the Platinum series. It was released on 16 May 2009. The printed size is 111.
110/111. It is entry 110 of 120 in this checklist.
Kent Kanetsuna. The catalog lists 74 other cards with that illustrator.
Rare Holo LV.X.
Mismagius #429, generation 4 (Sinnoh).
Darkness Magic.