AttackPummel
Flip a coin. If heads, this attack does 20 more damage.

Gurdurr is Pokédex #533, generation 5 (Unova). Gurdurr is a Stage 1 Fighting Pokémon with 90 HP. The card says it evolves from Timburr. In this catalog that name is Timburr (#532). The card lists Conkeldurr, Conkeldurr (#534) under evolves to.
Gurdurr sits at 66/146 in XY, position 66 of 146. Before it is 65 Timburr, and after it is 67 Conkeldurr. The set belongs to the XY series. It was released on 5 February 2014. The printed size is 146, and the checklist is the same length. The listed rarity is Uncommon.
The attack Pummel lists 20+ damage. The cost is Fighting, Colorless. Flip a coin. If heads, this attack does 20 more damage. Hammer Arm is another attack lists 60 damage. The cost is Fighting, Fighting, Colorless. Discard the top card of your opponent's deck. Weakness is Psychic ×2. Retreat cost is 3. The flavor text reads "With strengthened bodies, they skillfully wield steel beams to take down buildings."
Gurdurr (#533) has 8 other cards in the catalog. Those other cards are in 7 sets. The other printings with a release date run from 2011 to 2025. The earliest other card is Gurdurr 60/114 in Black & White (2011). That card lists 80 HP, and this one lists 90 HP. Both list the rarity Uncommon. Naoki Saito illustrated that card, and Kouki Saitou illustrated this one. Retreat cost there is 2, and here it is 3. 7 other cards of Gurdurr list a different HP.
The illustrator line reads Kouki Saitou. I count 652 other cards in the catalog with that illustrator.
XY set binder is where a full XY set goes. This card fills one slot there. A generation binder holds one card of each species. Gurdurr can fill a slot in Generation 5 binder (Unova). I still need this card.
Flip a coin. If heads, this attack does 20 more damage.
Discard the top card of your opponent's deck.
With strengthened bodies, they skillfully wield steel beams to take down buildings.
XY, in the XY series. It was released on 5 February 2014. The printed size is 146.
66/146. It is entry 66 of 146 in this checklist.
Kouki Saitou. The catalog lists 652 other cards with that illustrator.
Uncommon.
Gurdurr #533, generation 5 (Unova).
Pummel (20+) and Hammer Arm (60).