Pokémon Go: Mega Slowbro Mega Raid Guide

Pokemon Go Mega Slowbro
Pokemon Go Mega Slowbro (Image credit: Niantic)

Mega Slowbro is returning to Mega Raids in Pokémon Go. Fortunately, we here at iMore have gathered the best counters based on its current stats and movesets so you can prepare. Also be sure to check out our Best Pokémon Go Accessories, so you can be fully equipped for your Pokémon Journey!

Who is Mega Slowbro in Pokémon Go?

Pokemon 080 Slowbro Mega

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The first evolution of Gen I's Slowpoke, Slowbro would later be joined by Slowking in Gen II and the Regional Variants Galarian Slowbro and Galarian Slowking in Gen VIII. Slowpoke only evolves when bitten by a Shellder, who never lets go and constantly injects venom into the evolved Slowpoke, enhancing its Psychic powers. The two form a symbiotic organism with both benefiting from the arrangement.

While Mega Slowbro was the first and only Psychic Mega Pokémon in Pokémon Go and it remains the most affordable, its stats are very disappointing. If you cannot afford Mega Latios or Mega Latias, it will still provide a same type Mega Boost to other Psychic types on the field, but it won't last very long, so be ready with lots of Potions and Revives if you plan on using it.

Mega Evolution strategies for Mega Slowbro in Pokémon Go? 

Pokémon Go Mega Energy

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There are a handful of options for Mega Evolution when countering Mega Slowbro, focusing on each of its weaknesses: Ghost, Grass, Electric, Dark, and Bug. 

Mega Gengar

Pokemon 094 Gengar Mega

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The absolute best counter for Mega Slowbro is Mega Gengar. As a Ghost and Poison type, it takes increased damage from Psychic type attacks, but it deals so much damage and boosts other Ghost types that it's definitely worth bringing it. Shadow Claw and Shadow Ball are the moves you'll want your Mega Gengar to know when facing Mega Slowbro.

Mega Manectric

Pokemon 310 Mega Manectric

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Mega Manectric is the key to an Electric based offensive in this Mega Raid. As a pure Electric type, it brings no notable resistances but it's also not weak to any of Mega Slowbro's attacks. If you're bringing Mega Manectric to this fight, you'll want it to know Thunder Fang and Wild Charge.

Mega Houndoom

Pokemon 229 Houndoom Mega

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Mega Houndoom makes a great leader for a Dark based offensive. As a Dark and Fire type, it resists Psychic and Ice type damage, but it takes super effective damage from Water type attacks. Snarl and Foul Play are the moves you'll want Mega Houndoom to know for this Mega Raid.

Mega Gyarados

Pokemon 130 Gyarados Mega

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Although Mega Gyarados doesn't perform quite as well as Mega Houndoom, it's pretty close and a great choice for a Dark based offensive. It's a Water and Dark type, which gives it resistance to all of Mega Slowbro's attacks. If you are bringing Mega Gyarados to this fight you'll want Bite and Crunch for its moveset.

Mega Venusaur

Pokemon 003 Venusaur Mega

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Although Grass isn't the most viable counter, Mega Venusaur does make room for a Grass based offensive to Mega Slowbro. As a Grass and Poison type, it takes super effective damage from Ice and Psychic type attacks, while resisting Water, so moveset is really important here. If you are bringing a Mega Venusaur to this raid, you'll want Vine Whip for the fast attack and Frenzy Plant for the charged.

Honorable mentions?

While they will not perform as well, the following Mega Evolved Pokémon can also work for this raid:

What are the best counters for Mega Slowbro in Pokémon Go?

Mega Slowbro is a Water and Psychic type with access to Water, Psychic, and Ice type moves. Its weaknesses include Ghost, Grass, Electric, Dark, and Bug type leaving room for several winning strategies. 

Xurkitree

Pokemon 796 Xurkitree

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One of the Legendary Ultra Beasts first encountered in Gen VII, Xurkitree is the top non-Mega, non-Shadow counter for Mega Slowbro. This pure Electric type brings no notable weaknesses or resistances to the fight. Unfortunately, Xurkitree hasn't had a proper run in raids yet, having only been introduced during Pokémon Go Fest 2022, so many players don't even have one, much less the candy to power it up. Still, if you have one Thunder Shock and Discharge are its ideal moves for this raid.

Zekrom

Pokemon 644 Zekrom

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The Legendary mascot of Pokémon White, Zekrom performs very well in this raid. As a Dragon and Electric type, it resists Water type damage, but takes super effective damage from Ice type moves. Unfortunately, it's had very limited availability with only one proper run in raids, so many players still don't have one, much less the candy to power it up. Still, if you have it, Zekrom should know Charge Beam and Wild Charge to best handle this fight.

Zarude

Pokemon 893 Zarude

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A Mythical Pokémon originally encountered in Gen VIII's Galar region, Zarude is an excellent counter for Mega Slowbro. This Grass and Dark type takes super effective damage from Ice type moves, but resists both Psychic and Water type damage. Unfortunately, like most Mythicals, it is limited to one per account and only for players who completed a limited Timed Research. If you have one, Vine Whip and Power Whip are its best moves for this raid.

Hydreigon

Pokemon 635 Hydreigon

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A pseudo-Legendary from Gen V's Unova region, Hydreigon performs very well in this raid. This Dark and Dragon type is weak to Ice type moves, but resists Water and Psychic type damage. Thanks to its Community Day, as well as other events, most active players have at least one already powered up. If you are bringing Hydreigon to fight Mega Slowbro, you'll want it to know Bite and Brutal Swing. If you don't have the Community Day exclusive move or the Elite TM to spare, Dark Pulse can also work, but hamper lower its performance significantly.

Darkrai

Pokemon 491 Darkrai

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A Mythical Pokémon originally encountered in the Sinnoh region of Gen IV, Darkrai performs very well in this fight, especially when boosted by Mega Gyarados or Mega Houndoom. As a pure Dark type, it resists Psychic type attacks and has no relevant weaknesses. Even though Darkrai is a Mythical Pokémon, it has been featured in raids during Pokémon Go's Halloween events, so most players have had their chance to add Darkrai to their roster. Snarl and Dark Pulse are the moves you'll want your Darkrai to know, but Shadow Ball is an extremely close second if you don't have the TM to spare.

Thundurus (Therian forme)

Pokemon 642 Thundurus Therian

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One of the Forces of Nature trio from the Unova region, Thundurus is a Legendary Pokémon with multiple formes. For this fight, you're going to want the Therian forme of Thundurus. Fortunately, both formes use the same Candy and have been featured in multiple raids, as well as a Pokémon Go Battle League reward encounter. As an Electric and Flying type, it takes increased damage from Ice type moves and brings no notable resistances to this fight. If you're bringing Thundurus to this Mega Raid, you'll want Volt Switch and Thunderbolt for its moves.

Chandelure

Pokemon 609 Chandelure

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Originally discovered in the Unova region of Gen V, Chandelure is a great pick to pair with Mega Gengar. As a Ghost and Fire type, Chandelure does take super effective damage from Water type attacks, but resists Ice type damage. Fortunately, it's first stage, Litwick, has been featured in a number of events, so most players have had the opportunity to add this haunted chandelier to their roster. Hex is the fast move you'll want your Chandelure to know and Shadow Ball is the ideal charged move.

Giratina (Origin forme)

Pokemon 487 Giratina Origin

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Another Legendary Pokémon with multiple formes, Giratina (Origin) is a great pick for this Mega Raid. This Ghost and Dragon type takes increased damage from Mega Slowbro's Ice type attack, but resists its Water type attacks. Although Giratina's Origin forme hasn't seen as widespread availability as its Altered forme, they share the same candy, so can be easily powered up. If you're putting Giratina on your team, you'll want it to know Shadow Claw and Shadow Ball.

Hoopa (Confined)

Pokemon 720 Hoopa Confined

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A Mythical Pokémon from the Kalos region, Hoopa (Confined) is another great counter for Mega Slowbro. As a Psychic and Ghost type, it resists Psychic type damage and has no weaknesses relevant to this fight. Unfortunately, Hoopa is limited to one per account and only for players who completed the limited Timed Research. It also has two formes and switching between those formes is very expensive. Still, if you can bring Hoopa, Astonish and Shadow Ball are the moves you're looking for.

Shaymin (Sky)

Pokemon 492 Shaymin Sky

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Yet another Mythical for the list, Shaymin (Sky) is a great choice for this raid. It's a Grass and Flying type so it resists Water type moves, but takes super effective damage from Ice type. Unfortunately, this forme of Shaymin has only been released to players participating in the Pokémon Go Fest 2022 Berlin live event and it cannot change formes, so most players don't have it yet. If you do have Shaymin (Sky) Hidden Power (Grass) and Grass Knot is the moveset you'll want it to know.

Hoopa (Unbound)

Pokemon 720 Hoopa Unbound

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If your Hoopa is already in its Unbound forme and you don't want to spend the candy and Stardust switching it, Hoopa (Unbound) performs very well in this raid too. It's a Dark and Psychic type, giving it resistance to Psychic type moves and no relevant weaknesses. Like Hoopa (Confined), only players who completed the limited Timed Research have it and it costs a whopping 50 candy and 10,000 Stardust to switch formes. Astonish and Shadow Ball are also the best moves for this forme of Hoopa.

Raikou

Pokemon 243 Raikou

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One of the Legendary Beasts of Johto, Raikou is a great counter for Mega Slowbro. As a pure Electric type, none of Mega Slowbro's attacks can deal super effective damage, and it's one of the most readily available Legendaries in the game, having been featured many times in many different ways. If you are bringing Raikou to this fight, you'll want it to know Thunder Shock and Wild Charge.

Yveltal

Pokemon 717 Yveltal

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The Legendary mascot of Pokémon Y, Yveltal is a great choice in this Mega Raid. It's only had one run in raids outside of Pokémon Go Fest 2021, so you might not have enough candy to power it up; however, it's a great Dark and an even better Flying type, so worth the investment of Rare Candy. Yveltal takes increased damage from Ice type moves, while resisting Psychic type damage. The best moveset for Yveltal is Snarl and Dark Pulse.

Electivire

Pokemon 466 Electivire

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Easily one of the most accessible of the best counters for Mega Slowbro, Electivire performs great here. This pure Electric type has no weaknesses Slowbro can exploit and most players have at least a couple already powered up and ready for this fight. between being featured in multiple events, including Community Day, there's really no good excuse not to have a team of Electivire. Thunder Shock and Wild Charge are the moves you'll want your Electivire to know.

Back ups?

Although most players will be able to make a team of the best counters, if you're finding a gap in your team, there are plenty of back ups who work well in larger groups. Just make sure you're dodging and any of the following could be a decent back up:

  • Magnezone with Spark and Wild Charge
  • Weavile with Snarl and Foul Play
  • Sceptile with Fury Cutter and Frenzy Plant
  • Mewtwo with Psycho Cut and Shadow Ball
  • Zapdos with Thunder Shock and Thunderbolt
  • Luxray with Spark and Wild Charge
  • Gengar with Shadow Claw and Shadow Ball
  • Tyranitar with Bite and Crunch
  • Tapu Bulu with Bullet Seed and Grass Knot
  • Zacian (Hero of Many Battles) with Snarl and Wild Charge
  • Tapu Koko with Volt Switch and Thunderbolt
  • Celebi with Magical Leaf and Leaf Storm
  • Tangrowth with Vine Whip and Power Whip
  • Roserade with Razor Leaf and Grass Knot
  • Deoxys with Charge Beam and Thunderbolt
  • Pheromosa with Bug Bite and Bug Buzz

Shadow Pokémon?

The rebalance of Shadow Pokémon rescued from Team GO Rocket make them excellent glass cannons. Not only are their stats boosted, but during special events or with Elite TMs, it's possible to change their moves. If you happen to have any of the following Pokémon with the right moveset, they will work very well in this Raid:

  • Shadow Raikou with Thunder Shock and Wild Charge
  • Shadow Magnezone with Spark and Wild Charge
  • Shadow Weavile with Snarl and Foul Play
  • Shadow Electivire with Thunder Shock and Wild Charge
  • Shadow Zapdos with Thunder Shock and Thunderbolt
  • Shadow Mewtwo with Psycho Cut and Shadow Ball
  • Shadow Tyranitar with Bite and Crunch
  • Shadow Tangrowth with Vine Whip and Power Whip
  • Shadow Houndoom with Snarl and Foul Play
  • Shadow Absol with Snarl and Dark Pulse
  • Shadow Honchkrow with Snarl and Dark Pulse
  • Shadow Venusaur with Vine Whip and Frenzy Plant
  • Shadow Exeggutor with Bullet Seed and Solar Beam
  • Shadow Scizor with Fury Cutter and X-Scissor
  • Shadow Shiftry with Snarl and Leaf Blade
  • Shadow Torterra with Razor Leaf and Frenzy Plant
  • Shadow Banette with Shadow Claw and Shadow Ball

Note: Shadow Pokémon perform especially well in this raid with nearly all of these performing on par with the top counters.

How many players does it take to beat Mega Slowbro in Pokémon Go?

Although many players will need to rely on the back ups list to build their team, this is one of the easiest Mega Raids. In fact, under the right conditions, two top level players can beat it. With Mega Raids, you want to prioritize beating it faster so you get the most Mega Energy when you win, but if you can't find too many other players, you should still be able to swing this one.

Weather conditions that can impact this Raid include:

  • Rain will boost Mega Slowbro's Water type attacks, as well as your Electric and Bug type counters.
  • Snow will boost its Ice type attack.
  • Windy Weather will boost its Psychic type attacks.
  • Fog will boost your Dark and Ghost type counters.
  • Sunny/Clear weather will boost your Grass type counters.

Questions about taking on Mega Slowbro in Pokémon Go?

Do you have any questions about taking on Mega Slowbro in Pokémon Go? Got any tips for your fellow Trainers? Drop them in the comments below, and be sure to check out our other Pokémon Go guides so you too can become a Pokémon Master!