AttackShadowy Side Kick
If your opponent's Pokémon is Knocked Out by damage from this attack, during your opponent's next turn, prevent all damage from and effects of attacks done to this Pokémon.

Mega Evolution is a set in the Mega Evolution series. It was released on 26 September 2025. The printed size is 132. This checklist is longer, at 188 cards. Marshadow is 80/132, in position 80 of 188 on this checklist. Before it is 79 Toxicroak, and after it is 81 Stonjourner. The listed rarity is Uncommon.
Marshadow is a Basic Fighting Pokémon with 90 HP. In the Pokédex this is Marshadow (#802), generation 7 (Alola).
Marshadow (#802) has 16 other cards in the catalog. Those other cards are in 8 sets. The other printings with a release date run from 2017 to 2026. The earliest other card is Marshadow-GX SM59/248 in SM Black Star Promos (2017). That card is named Marshadow-GX, while this one is Marshadow. That card lists 150 HP, and this one lists 90 HP. The rarity there is Promo, and here it is Uncommon. 14 other cards of Marshadow list a different HP.
The attack Shadowy Side Kick lists 60 damage. The cost is Fighting, Fighting. If your opponent's Pokémon is Knocked Out by damage from this attack, during your opponent's next turn, prevent all damage from and effects of attacks done to this Pokémon. Weakness is Psychic ×2. Retreat cost is 1. The regulation mark is I.
I keep a set binder for Mega Evolution, meant to hold every card of that set. This card is one slot in the Mega Evolution set binder. A generation binder holds one card of each species. Marshadow can fill a slot in Generation 7 binder (Alola). I still need this card.
If your opponent's Pokémon is Knocked Out by damage from this attack, during your opponent's next turn, prevent all damage from and effects of attacks done to this Pokémon.
Mega Evolution, in the Mega Evolution series. It was released on 26 September 2025. The printed size is 132.
80/132. It is entry 80 of 188 in this checklist.
Uncommon.
Marshadow #802, generation 7 (Alola).
I.
Shadowy Side Kick (60).