Majestic Dawn is a set in the Diamond & Pearl series. It was released on May 1, 2008. The printed size is 100, and the checklist is the same length. Omastar is 26/100, in position 26 of 100 on this checklist. Before it is 25 Minun, and after it is 27 Phione. The listed rarity is Rare.
Omastar is a Stage 2 Water Pokémon with 110 HP. The card lists level 53. In the Pokédex this is Omastar (#139), generation 1 (Kanto). The card says it evolves from Omanyte. In this catalog that name is Omanyte (#138).
Masakazu Fukuda illustrated this card. The same name is on 471 other cards in the catalog.
Omastar (#139) has 16 other cards in the catalog. Those other cards are in 14 sets. The other printings with a release date run from 1999 to 2023. The earliest other card is Omastar 40/62 in Fossil (1999). That card lists 70 HP, and this one lists 110 HP. The rarity there is Uncommon, and here it is Rare. Ken Sugimori illustrated that card, and Masakazu Fukuda illustrated this one. 13 other cards of Omastar list a different HP.
Primal Swirl is listed as Poké-Power. Once during your turn, when you play Omastar from your hand to evolve 1 of your Pokémon, you may remove the highest Stage Evolution card from each of your opponent's Benched Evolved Pokémon and put those cards back into his or her hand. You can't use more than 1 Primal Swirl Poké-Power each turn. The attack Send Back lists 40 damage. The cost is Water, Colorless. Your opponent switches the Defending Pokémon with 1 of his or her Benched Pokémon. Weakness is Grass +30. Retreat cost is 1. The flavor text reads "It is thought that this Pokémon became extinct because its spiral shell grew too large."
I keep a set binder for Majestic Dawn, meant to hold every card of that set. This card is one slot in the Majestic Dawn set binder. A generation binder holds one card of each species. Omastar can fill a slot in Generation 1 binder (Kanto). I still need this card.
Once during your turn, when you play Omastar from your hand to evolve 1 of your Pokémon, you may remove the highest Stage Evolution card from each of your opponent's Benched Evolved Pokémon and put those cards back into his or her hand. You can't use more than 1 Primal Swirl Poké-Power each turn.
Your opponent switches the Defending Pokémon with 1 of his or her Benched Pokémon.
It is thought that this Pokémon became extinct because its spiral shell grew too large.
Majestic Dawn, in the Diamond & Pearl series. It was released on May 1, 2008. The printed size is 100.
26/100. It is entry 26 of 100 in this checklist.
Masakazu Fukuda. The catalog lists 471 other cards with that illustrator.
Rare.
Omastar #139, generation 1 (Kanto).
Send Back (40).