Moves
Toxic whittles foes down, which is especially useful against bulkier or Ground-immune Pokemon such as Tangela, Eelektross and Torterra. Rock Slide hits Ground-resistant Pokemon like Cryogonal, Oricorio-E, Haunter, and Abomasnow. Protect allows Toxic damage to stack, provides a turn of Leftovers recovery, wastes weather and Trick Room turns, and scouts moves of Choice item users like Aurorus. Roar forces the foe out, which helps wear down the opposing team when combined with hazards. It can also be used to remove stat boosts from setup Pokemon like Gurdurr and Type: Null as well as force out standard switch-ins like Poliwrath and Haunter.
Set Details
252 HP and 172 Defense EVs along with an Impish nature allow Mudsdale to take physical hits such as a Choice Band Return from Stoutland and Choice Scarf Kabutops's Liquidation after Stealth Rock, and then take another after a Stamina boost. The rest of the EVs are placed into Special Defense to better take special attacks from Pokemon such as Oricorio-E. Specifically it helps Mudsdale avoid the 2HKO from Eelektross's Giga Drain after Stealth Rock. Stamina furthers this by boosting Mudsdale's Defense every time it takes a hit. Figy Berry can be used as a single-use form of recovery that can restore a substantial amount of health after Mudsdale gets worn down or potentially allow Mudsdale to avoid a 2HKO, notably helping it beat Stoutland. Leftovers gives Mudsdale a residual form of recovery, making it harder to wear down over time. Rocky Helmet supplies another form of residual damage on top of Stealth Rock and Toxic that can chip physical attackers like Kangaskhan and is especially useful for U-turn users like Scyther and Primeape while Yache Berry lets Mudsdale lure Ice-types like Aurorus and Subzero Slammer Alolan Sandslash, but both Rocky Helmet and Yache Berry leave Mudsdale with no form of recovery.
Usage Tips
Mudsdale should be used throughout the game to switch into physical attacks from Pokemon like Scyther, Skuntank, and Aggron. However, it has to watch out for status-inflicting moves like Alolan Dugtrio's Toxic, and other utility moves such as Gurdurr's Knock Off. Mudsdale can switch into weaker moves such as Kangaskhan's Fake Out and Hitmonchan's Rapid Spin to receive a relatively free Defense boost from Stamina and supply chip damage if running Rocky Helmet. It can also absorb Volt Switch from Pokemon such as Eelektross, stopping them from switching, but still has to watch out for coverage and utility moves. Stay wary of how easily Mudsdale can be worn down if constantly switching in to take hits, especially if layers of Spikes or Toxic Spikes are on the field. When brought in against Pokemon that are threatened by it, Mudsdale will often force a switch. You can use this as an opportunity to set up Stealth Rock, allowing it to start chipping the opposing team. If Stealth Rock is already up, you can use Toxic on predicted switch-ins like Tangela and Eelektross, double switch to an ideal matchup to gain momentum, or use Roar for chip damage. However, it is notable that while Roar may put you in an ideal matchup, it can also favor the opponent by bringing in a threat to Mudsdale such as Victreebel or Jellicent instead. While Rock Slide may usually be your best option against Flying-types such as Oricorio-G and Swanna, they will often use Roost if at low health, losing their Rock weakness in the process. They also lose their Ground immunity, however, which you can use to create mind games or even potentially KO them with Earthquake. Protect can be used throughout the match to get Leftovers recovery, wear foes down with Toxic, waste turns of weather and Trick Room, and scout Choice item users such as Drampa, but the opponent can predict Protect and use the turn to get a free switch. Setup sweepers like Omastar and Alolan Sandslash can also use Protect or a predicted switch as a chance to set up, so an option is to instead use Roar or go for the KO, although at the risk of them instead simply attacking.
Team Options
Bulky Water-types such as Lanturn, Jellicent, and Poliwrath can help against Ice- and Water-types like Aurorus and Floatzel, with Lanturn also supporting Mudsdale with Heal Bell and providing momentum with Volt Switch. In return, Mudsdale can absorb Electric attacks for Jellicent and Poliwrath. Flying-types like Oricorio-G and Articuno can soak up Grass-type hits from the likes of Torterra and Victreebel for Mudsdale, and appreciate Mudsdale tanking Rock- and Electric-type attacks in return. Oricorio-G can also act as a spinblocker for Mudsdale, and appreciates Mudsdale's ability to lure and poison Eelektross, giving Oricorio-G an opportunity to set up.
Grass-types such as Lurantis, Ludicolo, and Victreebel can help with Water- and opposing Grass-types like Carracosta and Tangela, while Mudsdale can check Poison- and Steel-types like Skuntank and Metang. Mudsdale works well on entry hazard stacking teams due to its combination of Stealth Rock and Roar, making Spikes setters such as Qwilfish and Ferroseed good teammates. Qwilfish in particular can use Taunt to block Defog from the likes of Altaria and Silvally-Fairy, pressure other Taunt users like Jellicent and setup sweepers like Gurdurr, and can carry various other utility options such as Toxic Spikes and Will-O-Wisp. In return, Mudsdale can serve as a check to some of their threats like special Skuntank and Hitmonchan. Furthermore, setup sweepers like Omastar and Simisear and wallbreakers such as Aggron and Aurorus appreciate that these hazards, or just Mudsdale's Stealth Rock, can weaken foes to KO range. Due to how often Mudsdale switches in throughout the match, hazard removers like Rotom-Frost and Cryogonal are vital. Rotom-Frost can check Water- and Grass- types like Jellicent and Torterra that pressure Mudsdale, and Cryogonal can check check special attackers like Victreebel and Aurorus while appreciating Mudsdale's resistance to Rock. Other specially defensive Pokemon like Eelektross can also help with these special attackers and benefit from Mudsdale's good matchup against physical threats like Stoutland and Primeape, forming a solid defensive core.