AttackSlightly Simmer
Search your deck for up to 2 cards and discard them. Shuffle your deck afterward.

Steam Siege is a set in the XY series. It was released on August 3, 2016. The printed size is 114. This checklist is longer, at 116 cards. Litwick is 48/114, in position 48 of 116 on this checklist. Before it is 47 Drifblim, and after it is 49 Lampent. The listed rarity is Common.
Litwick is a Basic Psychic Pokémon with 50 HP. In the Pokédex this is Litwick (#607), generation 5 (Unova). The card lists Lampent, Lampent (#608) under evolves to.
Ken Sugimori illustrated this card. The same name is on 1,112 other cards in the catalog.
Litwick (#607) has 18 other cards in the catalog. Those other cards are in 15 sets. The other printings with a release date run from 2011 to 2026. The earliest other card is Litwick BW27/101 in BW Black Star Promos (2011). Both list 50 HP. The rarity there is Promo, and here it is Common. Atsuko Nishida illustrated that card, and Ken Sugimori illustrated this one. 13 other cards of Litwick list a different HP.
The attack Slightly Simmer lists no damage number. The cost is Colorless. Search your deck for up to 2 cards and discard them. Shuffle your deck afterward. Weakness is Darkness ×2. Resistance is Fighting -20. Retreat cost is 1. The flavor text reads "Litwick shines a light that absorbs the life energy of people and Pokémon, which becomes the fuel that it burns."
I keep a set binder for Steam Siege, meant to hold every card of that set. This card is one slot in the Steam Siege set binder. A generation binder holds one card of each species. Litwick can fill a slot in Generation 5 binder (Unova). I still need this card.
Search your deck for up to 2 cards and discard them. Shuffle your deck afterward.
Litwick shines a light that absorbs the life energy of people and Pokémon, which becomes the fuel that it burns.
Steam Siege, in the XY series. It was released on August 3, 2016. The printed size is 114.
48/114. It is entry 48 of 116 in this checklist.
Ken Sugimori. The catalog lists 1,112 other cards with that illustrator.
Common.
Litwick #607, generation 5 (Unova).
Slightly Simmer.