Mega Slowbro Raid Guide

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Slowbro (Mega)

Mega Slowbro is a Water and Psychic type Mega Raid Boss. Optimal raid counters include powerful Ghost Dark Grass Electric and Bug types. With such a diverse range of weaknesses, it would be relatively easy to take out Mega Slowbro.

Depending on your levels and counters, we would recommend 3-6 high-level trainers who or more if you don’t have optimal teams. This is attributed to the fact that Mega Slowbro is quite bulky.

This guide will tell you how to beat this awkward Mega almost completely stuck inside a Shellder. In addition, we will also present its stats, moves and CP range.


Mega Slowbro Counters

Since Shadow Pokémon are extremely expensive to power up and require specific events to remove Frustration with a Charge TM, they will NOT be listed as raid counters in this article. That being said, if you have the shadow form of a listed raid counter Pokémon powered up and TMed, use it.

Let’s check out the top raid counters for Mega Slowbro:

# Pokémon Fast Move Charge Move Time to win Deaths
1. Gengar (Mega) Shadow Claw
Ghost
Shadow Ball
Ghost
455.01s 28.50
2. Sceptile (Mega) Fury Cutter
Bug
Frenzy Plant
Grass
504.56s 27.20
3. Banette (Mega) Shadow Claw
Ghost
Shadow Ball
Ghost
509.55s 30.50
4. Manectric (Mega) Thunder Fang
Electric
Wild Charge
Electric
550.74s 27.83
5. Houndoom (Mega) Snarl
Dark
Foul Play
Dark
580.61s 21.33
6. Gyarados (Mega) Bite
Dark
Crunch
Dark
637.59s 11.83
7. Venusaur (Mega) Vine Whip
Grass
Frenzy Plant
Grass
584.77s 26.17
8. Absol (Mega) Snarl
Dark
Payback
Dark
584.94s 29.00
9. Ampharos (Mega) Volt Switch
Electric
Zap Cannon
Electric
629.37s 26.00
10. Scizor (Mega) Fury Cutter
Bug
X-Scissor
Bug
658.92s 20.67
11. Beedrill (Mega) Bug Bite
Bug
X-Scissor
Bug
625.25s 47.00
12. Kartana Razor Leaf
Grass
Leaf Blade
Grass
681.90s 31.67
13. Alakazam (Mega) Psycho Cut
Psychic
Shadow Ball
Ghost
695.91s 31.67
14. Gardevoir (Mega) Charge Beam
Electric
Shadow Ball
Ghost
731.97s 27.00
15. Xurkitree Spark
Electric
Discharge
Electric
694.47s 38.83
16. Latios (Mega) Dragon Breath
Dragon
Solar Beam
Grass
762.93s 24.50
17. Zarude Vine Whip
Grass
Power Whip
Grass
790.30s 19.83
18. Hydreigon Bite
Dark
Brutal Swing
Dark
791.36s 23.40
19. Zekrom Charge Beam
Electric
Fusion Bolt
Electric
749.80s 30.00
20. Groudon (Primal) Mud Shot
Ground
Solar Beam
Grass
780.31s 29.00
21. Abomasnow (Mega) Razor Leaf
Grass
Energy Ball
Grass
766.68s 29.50
22. Salamence (Mega) Bite
Dark
Draco Meteor
Dragon
788.85s 28.40
23. Darkrai Snarl
Dark
Shadow Ball
Ghost
793.50s 27.17
24. Pheromosa Bug Bite
Bug
Bug Buzz
Bug
691.13s 57.33
25. Giratina (Origin) Shadow Claw
Ghost
Shadow Force
Ghost
805.41s 27.00
26. Gholdengo Hex
Ghost
Shadow Ball
Ghost
811.76s 26.83
27. Hoopa (Unbound) Astonish
Ghost
Shadow Ball
Ghost
837.90s 24.60
28. Chandelure Hex
Ghost
Shadow Ball
Ghost
768.81s 38.00
29. Sceptile Fury Cutter
Bug
Frenzy Plant
Grass
812.00s 40.25
30. Thundurus (Therian) Volt Switch
Electric
Thunderbolt
Electric
775.44s 44.00
31. Yveltal Snarl
Dark
Dark Pulse
Dark
882.97s 18.50
32. Magnezone Spark
Electric
Wild Charge
Electric
861.74s 23.50
33. Latias (Mega) Dragon Breath
Dragon
Outrage
Dragon
888.94s 20.33
34. Hoopa (Confined) Astonish
Ghost
Shadow Ball
Ghost
833.73s 33.75
35. Raikou Thunder Shock
Electric
Wild Charge
Electric
824.66s 33.00

While the Pokémon stated above are the generic counters, Mega Slowbro’s dual typing of Water and Psychic flips the tables on different occasions. For instance, the top counter, Mega Gengar, is weak to Mega Slowbro’s STAB Psychic moves. This applies to something like Mega Venusaur as well. So you should mega evolve either Gengar or Venusaur only if Mega Slowbro isn’t using Psychic moves.

A similar logic follows when Mega Slowbro is using Water types moves and you should be wary of using Mega Houndoom or Chandelure.


How to get Mega Slowbro?

You cannot catch Slowbro in its mega evolved form from the raid. The mega raid boss is always catchable in its base form and as such, the CP ranges are for a regular Slowbro.

Slowbro can be caught with the following CP values:

  • 1382- 1454CP at level 20, no weather boost
  • 1728- 1817 CP at level 25 with Rainy or Windy weather boost

In order to get Mega Slowbro you will need 200 Mega Energy for the initial evolution, then 40 Mega Energy to evolve the same Slowbro again in the future. If you wait for their ‘cooldown’ period to end, Mega Evolution is free. This cooldown period is shorter the higher mega level your Mega Pokémon is. Mega Energy can be obtained via Mega Slowbro Raids, and once you have evolved Mega Slowbro, you can earn 5 Mega Energy per candy while walking it as your buddy. You can walk any Slowpoke or Slowbro to earn Mega Energy, as long as you have previously evolved one to register it to your Mega Pokédex.

Shiny Slowbro

Like all Mega Raid Bosses, you can catch the shiny version of Slowbro from a raid.

Regular Sprite Shiny Sprite

Mega Slowbro Stats

Mega Slowbro has the following stats in Pokémon GO:

Slowbro (Mega) WaterPsychic
Max CP at lvl 40 3755 | Max CP at lvl 50 4245
ATK 224 DEF 259 HP 216
Weak to Strong Against
Bug Dark Electric Ghost Grass Fire Ground Rock Fighting Poison

As it is quite evident, Mega Slowbro is very bulky and as such, we had focused our list of counters on Time To Win complemented with raw DPS.

With that being said, let us check out Mega Slowbro’s movepool!


Mega Slowbro Moveset Analysis

Fast Moves Charge Moves
  • Water Gun Water
  • Confusion Psychic
  • Water Pulse Water
  • Psychic Psychic
  • Ice Beam Ice

Confusion is an extremely hard-hitting STAB move with low energy gains. While this will demolish Mega Gengar, your Dark types will resist it.

Water Gun might not hit as hard as Confusion but charges quicker and is largely unresisted by your counters.

Psychic and Water Pulse are both 2-bar STAB charged moves that can come quite frequently from Water Gun. Psychic is the more damaging move.

Ice Beam lacks STAB and with Mega Slowbro’s relatively lower ATK stat, it shouldn’t really be concerning.


Mega Slowbro is a fun Mega to add to your roster of Pokémon. It looks hilarious, has an amazing shiny and is very bulky thereby, is instrumental in giving the coveted Mega Bonus to Water and Psychic Pokémon in raids for a long period of time.

Stay safe and all the best, trainers!

Author & tags

babygengar
babygengarhttps://pokemongohub.net/post/author/babygengar/
Heya there! I'm Manjari, a Mystic trainer from India and one day, I will be walking across the lands like Ash! When not found with my keyboard and keywords, I can be found reading about ghost Pokémon lore or binge-watching Pokémon movies! 💜

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