Cosmoem 79/128 · 30th Celebration

Cosmoem is Pokédex #790, generation 7 (Alola). Cosmoem is a Stage 1 Psychic Pokémon with 100 HP. The card says it evolves from Cosmog. In this catalog that name is Cosmog (#789).

Cosmoem sits at 79/128 in 30th Celebration, position 79 of 161. Before it is 78 Cosmog, and after it is 80 Lunala. The set belongs to the Mega Evolution series. It was released on September 16, 2026. The printed size is 128. This checklist is longer, at 161 cards. The listed rarity is Common.

The attack Stiffen lists no damage number. The cost is Colorless, Colorless. During your opponent's next turn, this Pokémon takes 60 less damage from attacks (after applying Weakness and Resistance). Weakness is Darkness ×2. Resistance is Fighting -30. Retreat cost is 3. The regulation mark is J.

Cosmoem (#790) has 5 other cards in the catalog. Those other cards are in 5 sets. The other printings with a release date run from 2017 to 2021. The earliest other card is Cosmoem 65/149 in Sun & Moon (2017). That card lists 90 HP, and this one lists 100 HP. The rarity there is Rare, and here it is Common. Sanosuke Sakuma illustrated that card, and Masako Tomii illustrated this one. 4 other cards of Cosmoem list a different HP.

The illustrator line reads Masako Tomii. I count 10 other cards in the catalog with that illustrator.

30th Celebration set binder is where a full 30th Celebration set goes. This card fills one slot there. A generation binder holds one card of each species. Cosmoem can fill a slot in Generation 7 binder (Alola). I still need this card.