Mysterious Treasures is a set in the Diamond & Pearl series. It was released on 1 August 2007. The printed size is 123. This checklist is longer, at 124 cards. Crobat is 23/123, in position 23 of 124 on this checklist. Before it is 22 Chimecho, and after it is 24 Exeggutor. The listed rarity is Rare.
Crobat is a Stage 2 Psychic Pokémon with 100 HP. The card lists level 45. In the Pokédex this is Crobat (#169), generation 2 (Johto). The card says it evolves from Golbat. In this catalog that name is Golbat (#042).
Masakazu Fukuda illustrated this card. The same name is on 471 other cards in the catalog.
Crobat (#169) has 37 other cards in the catalog. Those other cards are in 26 sets. The other printings with a release date run from 2001 to 2026. The earliest other card is Crobat 4/64 in Neo Revelation (2001). That card lists 90 HP, and this one lists 100 HP. The rarity there is Rare Holo, and here it is Rare. Shin-ichi Yoshida illustrated that card, and Masakazu Fukuda illustrated this one. 37 other cards of Crobat list a different HP.
Evolutionary Toxic is listed as Poké-Power. Once during your turn, when you play Crobat from your hand to evolve 1 of your Pokémon, you may choose 1 of the Defending Pokémon. That Pokémon is now Poisoned. Put 2 damage counters instead of 1 on that Pokémon between turns. The attack Strike and Fade lists no damage number. The cost is Psychic, Psychic. Choose 1 of your opponent's Pokémon. This attack does 50 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) Flip a coin. If tails, shuffle Crobat and all cards attached to it back into your deck. Weakness is Psychic +30. Resistance is Fighting -20. The flavor text reads "Having four wings enables it to fly faster and more quietly. It turns active when the night comes."
I keep a set binder for Mysterious Treasures, meant to hold every card of that set. This card is one slot in the Mysterious Treasures set binder. A generation binder holds one card of each species. Crobat can fill a slot in Generation 2 binder (Johto). I still need this card.