Marnie’s Grimmsnarl ex Deck Guide (Standard Format) Pokémon (16) 3 Marnie's Impidimp DRI $0.13 1 Fezandipiti ex SFA $17.58 2 Marnie's Grimmsnarl ex DRI $0.86 2 Snorunt TWM $0.13 2 Marnie's Morgrem DRI $0.14 1 Yveltal MEG $0.21 3 Munkidori PRE $0.40 2 Froslass PR SV $4.98 Trainer (36) 1 Air Balloon BLK $0.76 2 Ultra Ball PAF $0.16 2 Rare Candy SVI $0.14 1 Energy Search SVI $0.12 1 Buddy Buddy Poffin TEF $0.25 3 Lillie's Determination MEG $1.26 1 Professor's Research (Professor Sada) SVI $0.11 2 Counter Catcher PAR $1.53 2 Spikemuth Gym DRI $0.13 4 Iono PAL $0.32 1 Artazon PAF $0.14 1 Technical Machine: Devolution PAR $0.21 2 Night Stretcher SFA $2.42 1 Super Rod PAL $0.24 2 Technical Machine: Evolution PAR $0.39 2 Nest Ball SVI $0.26 1 Secret Box TWM $15.10 1 Energy Switch SVI $0.27 3 Arven SVI $1.72 3 Boss's Orders (Ghetsis) PAL $0.74 Energy (8) 8 Basic Darkness Energy SVE $0.02 Market Price: $71.46 Overview At first glance, Marnie’s Grimmsnarl ex might look like an odd collection of Pokémon that don’t quite fit together but when piloted correctly, the deck’s strategy reveals itself as a clever synergy of damage spread, disruption, and precision attacks. This list brings together Froslass, Munkidori, and Marnie’s Grimmsnarl ex, held together by one crucial card: Secret Box. The idea is simple but effective. Froslass’s Freezing Shroud places damage counters on all Pokémon with Abilities between turns, and Munkidori’s Adrena Brain turns that passive damage into active pressure by reflecting it back onto the opponent’s side. Marnie’s Grimmsnarl ex then takes over as a powerful Darkness type attacker that capitalizes on the damage you’ve spread. The Core Strategy Secret Box is the glue that holds the deck together. It allows you to search for a Marnie’s Pokémon, a Supporter, and a Buddy Buddy Poffin setting up your next turn and stabilizing your board. Pair this with Arven, one of the strongest early game Supporters, to fetch key tools like Technical Machine: Evolution or Rare Candy to bring your board online quickly. Your best stadium, Spikemuth Gym, provides consistent search power for your Marnie’s line, keeping the deck’s engine running. Once your board is established, Boss’s Orders (Ghetsis) becomes a major win condition pulling key targets from the opponent’s bench and disrupting their setup. Often, simply maintaining pressure with Grimmsnarl while controlling their setup with Boss’s Orders is enough to win slower matchups outright. Key Pokémon Choices Marnie’s Grimmsnarl ex (DRI) Your main attacker and centerpiece. Efficient and versatile, it’s your primary win condition once the setup is complete. Munkidori (PRE) The backbone of your passive damage engine. Multiple copies are essential to stack the Adrena Brain Ability, amplifying chip damage into real offensive momentum. Froslass (PR SV) Fuels the deck’s spread strategy through Freezing Shroud, punishing opponents for keeping Ability heavy boards. Fezandipiti ex (SFA) Acts as your on board draw engine. In an environment where Grimmsnarl is often knocked out in one hit anyway, Fezandipiti ex’s two Prize liability is minimal. It provides crucial consistency in a deck that otherwise lacks draw power. Yveltal (MEG) A single copy inclusion that offers free retreat and occasional stall potential by locking opponents’ Active Pokémon. Its utility in buying tempo turns makes it a subtle but effective addition. Key Trainer Cards and Supporters Secret Box: The heart of the deck’s consistency engine. Arven: Strong early game search for Item and Tool cards. Boss’s Orders (Ghetsis): Enables aggressive plays and punishes slow setups run at three copies for reliability. Lillie’s Determination: Provides flexible draw and helps preserve crucial resources better than Professor’s Research in this build. Technical Machine: Evolution & Devolution: Evolution accelerates setup, while Devolution acts as pseudo removal against damage heavy opponents. Iono & Counter Catcher: Core disruption tools, helping you turn losing positions into comebacks. Spikemuth Gym & Artazon: Essential Stadiums that improve consistency and board setup. Matchup Breakdown Gardevoir ex / Jellicent ex – Slightly Favored Despite Gardevoir’s Psychic typing and Darkness weakness, this matchup isn’t an auto win. Gardevoir ex’s disruption and Technical Machine: Devolution pressure can make things tricky. Avoid benching Froslass in this matchup, as Technical Machine: Devolution attached to Jellicent ex can reset your entire board. Prioritize setting up Marnie’s Morgrem, which can safely attack low HP targets like Ralts or Frillish. Once your Grimmsnarls are online, Gardevoir often struggles to sustain enough energy to keep up with your consistent pressure. Dragapult / Dusknoir – Slightly Unfavored This matchup can be rough, but it’s winnable with smart play. Froslass shines here its Freezing Shroud pings your opponent’s Drakloaks, setting them up for KOs via Adrena Brain or Technical Machine: Devolution. Yveltal can also stall effectively by trapping Latias or Fezandipiti Active for a few turns, giving you time to spread more damage. However, watch out for Budew’s Itchy Pollen, which can shut down your early setup. If your opponent opens poorly or overextends, you can capitalize quickly with Boss’s Orders and aggressive play from Grimmsnarl.