Platinum is a set in the Platinum series. It was released on February 11, 2009. The printed size is 127. This checklist is longer, at 133 cards. Blissey is 22/127, in position 22 of 133 on this checklist. Before it is 21 Beautifly, and after it is 23 Dialga. The listed rarity is Rare.
Blissey is a Stage 1 Colorless Pokémon with 120 HP. The card lists level 40. In the Pokédex this is Blissey (#242), generation 2 (Johto). The card says it evolves from Chansey. In this catalog that name is Chansey (#113).
Atsuko Nishida illustrated this card. The same name is on 408 other cards in the catalog.
Blissey (#242) has 21 other cards in the catalog. Those other cards are in 16 sets. The other printings with a release date run from 2001 to 2024. The earliest other card is Blissey 2/64 in Neo Revelation (2001). Both list 120 HP. The rarity there is Rare Holo, and here it is Rare. Yuka Morii illustrated that card, and Atsuko Nishida illustrated this one. 17 other cards of Blissey list a different HP.
Nurse Call is listed as Poké-Power. Once during your turn (before your attack), you may discard a card from your hand. If you do, remove 2 damage counters from 1 of your Pokémon. You can't use more than 1 Nurse Call Poké-Power each turn. This power can't be used if Blissey is affected by a Special Condition. The attack Return lists 20 damage. The cost is Colorless. Draw cards until you have 6 cards in your hand. Double-edge is another attack lists 100 damage. The cost is Colorless, Colorless, Colorless, Colorless. Blissey does 60 damage to itself. Weakness is Fighting +30. Retreat cost is 2.
I keep a set binder for Platinum, meant to hold every card of that set. This card is one slot in the Platinum set binder. A generation binder holds one card of each species. Blissey can fill a slot in Generation 2 binder (Johto). I still need this card.