AttackDouble Hit
Flip 2 coins. This attack does 20 damage times the number of heads.

Noble Victories is a set in the Black & White series. It was released on November 16, 2011. The printed size is 101. This checklist is longer, at 102 cards. Zweilous is 78/101, in position 78 of 102 on this checklist. Before it is 77 Deino, and after it is 79 Hydreigon. The listed rarity is Uncommon.
Zweilous is a Stage 1 Darkness Pokémon with 90 HP. In the Pokédex this is Zweilous (#634), generation 5 (Unova). The card says it evolves from Deino. In this catalog that name is Deino (#633). The card lists Hydreigon, Hydreigon (#635) under evolves to.
Masakazu Fukuda illustrated this card. The same name is on 471 other cards in the catalog.
Zweilous (#634) has 14 other cards in the catalog. Those other cards are in 12 sets. The other printings with a release date run from 2012 to 2026. The earliest other card is Zweilous 95/124 in Dragons Exalted (2012). That card lists 80 HP, and this one lists 90 HP. Both list the rarity Uncommon. Hajime Kusajima illustrated that card, and Masakazu Fukuda illustrated this one. 9 other cards of Zweilous list a different HP.
The attack Double Hit lists 20× damage. The cost is Colorless. Flip 2 coins. This attack does 20 damage times the number of heads. Strength is another attack lists 50 damage. The cost is Darkness, Colorless, Colorless. Weakness is Fighting ×2. Resistance is Psychic -20. Retreat cost is 2. The flavor text reads "Since their two heads do not get along and compete with each other for food, they always eat too much."
I keep a set binder for Noble Victories, meant to hold every card of that set. This card is one slot in the Noble Victories set binder. A generation binder holds one card of each species. Zweilous can fill a slot in Generation 5 binder (Unova). I still need this card.
Flip 2 coins. This attack does 20 damage times the number of heads.
Since their two heads do not get along and compete with each other for food, they always eat too much.
Noble Victories, in the Black & White series. It was released on November 16, 2011. The printed size is 101.
78/101. It is entry 78 of 102 in this checklist.
Masakazu Fukuda. The catalog lists 471 other cards with that illustrator.
Uncommon.
Zweilous #634, generation 5 (Unova).
Double Hit (20×) and Strength (50).