AbilityGeotech System
Once during your turn (before your attack), you may attach a Psychic or Metal Energy card from your discard pile to your Active Pokémon.

Guardians Rising is a set in the Sun & Moon series. It was released on May 5, 2017. The printed size is 145. This checklist is longer, at 180 cards. Metagross-GX is 157/145, in position 167 of 180 on this checklist. Before it is 156 Lycanroc-GX, and after it is 157a Metagross-GX. The collector number is above the printed set size of 145. The listed rarity is Rare Rainbow.
Metagross-GX is a Stage 2 GX Metal Pokémon with 250 HP. In the Pokédex this is Metagross (#376), generation 3 (Hoenn). The card says it evolves from Metang. In this catalog that name is Metang (#375).
5ban Graphics illustrated this card. The same name is on 1,629 other cards in the catalog.
Metagross (#376) has 33 other cards in the catalog. Those other cards are in 23 sets. The other printings with a release date run from 2004 to 2026. The earliest other card is Metagross 11/101 in Hidden Legends (2004). That card is named Metagross, while this one is Metagross-GX. That card lists 100 HP, and this one lists 250 HP. The rarity there is Rare Holo, and here it is Rare Rainbow. Kouki Saitou illustrated that card, and 5ban Graphics illustrated this one. Retreat cost there is 2, and here it is 3. 30 other cards of Metagross list a different HP.
Geotech System is listed as Ability. Once during your turn (before your attack), you may attach a Psychic or Metal Energy card from your discard pile to your Active Pokémon. The attack Giga Hammer lists 150 damage. The cost is Metal, Metal, Colorless. This Pokémon can't use Giga Hammer during your next turn. Algorithm-GX is another attack lists no damage number. The cost is Colorless. Search your deck for up to 5 cards and put them into your hand. Then, shuffle your deck. (You can't use more than 1 GX attack in a game.) Weakness is Fire ×2. Resistance is Psychic -20. Retreat cost is 3. The card text says: Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
I keep a set binder for Guardians Rising, meant to hold every card of that set. This card is one slot in the Guardians Rising set binder. A generation binder holds one card of each species. Metagross can fill a slot in Generation 3 binder (Hoenn). I still need this card.
Once during your turn (before your attack), you may attach a Psychic or Metal Energy card from your discard pile to your Active Pokémon.
This Pokémon can't use Giga Hammer during your next turn.
Search your deck for up to 5 cards and put them into your hand. Then, shuffle your deck. (You can't use more than 1 GX attack in a game.)
Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
Guardians Rising, in the Sun & Moon series. It was released on May 5, 2017. The printed size is 145.
157/145. It is entry 167 of 180 in this checklist.
5ban Graphics. The catalog lists 1,629 other cards with that illustrator.
Rare Rainbow.
Metagross #376, generation 3 (Hoenn).
Giga Hammer (150) and Algorithm-GX.