The Pokemon GO Mega Master League is a limited format in GO Battle League where Mega Evolved Pocket Monsters are allowed to take part. It seldom appears in the cycle. It was supposed to appear alongside the open Great League from 1 pm PT on February 25 until 1 pm PT on March 4, 2025 to o end the Dual Destiny GBL season. However, due to undisclosed reasons, the Master Premier Cup will appear in its place.
Your team must consist of three Pocket Monsters and can include a maximum of one critter capable of Mega Evolution or Primal Reversion. It is recommended that you only use fully powered-up creatures with as close to perfect IVs (15/15/15) as possible.
This article highlights the best leads, switches, and closers you can use in Pokemon GO Mega Master League in GBL Season 21.
Also read: Pokemon GO Mega Master League replaced hours before return, PvP players express disappointment
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Best leads for Pokemon GO Mega Master League

Top Mega leads
1) Mega Rayquaza
- Fast Attack: Dragon Tail
- Charged Attacks: Breaking Swipe and Dragon Ascent
2) Mega Gyarados
- Fast Attack: Dragon Breath
- Charged Attacks: Aqua Tail and Crunch
3) Primal Groudon
- Fast Attack: Mud Shot
- Charged Attacks: Fire Punch and Precipice Blades
4) Mega Latios
- Fast Attack: Dragon Breath
- Charged Attacks: Dragon Claw and Luster Purge
5) Mega Swampert
- Fast Attack: Mud Shot
- Charged Attacks: Hydro Cannon and Earthquake
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Top non-Mega leads
1) Origin Forme Palkia
- Fast Attack: Dragon Breath
- Charged Attacks: Aqua Tail and Spacial Rend
2) Palkia (or Shadow Palkia)
- Fast Attack: Dragon Breath
- Charged Attacks: Aqua Tail and Draco Meteor
3) Florges
- Fast Attack: Fairy Wind
- Charged Attacks: Moonblast and Disarming Voice
4) Marshadow
- Fast Attack: Sucker Punch
- Charged Attacks: Ice Punch and Close Combat
5) Solgaleo
- Fast Attack: Fire Spin
- Charged Attacks: Psychic Fangs and Iron Head
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Best switches for Pokemon GO Mega Master League

Top Mega switches
1) Mega Gyarados
- Fast Attack: Dragon Breath
- Charged Attacks: Aqua Tail and Crunch
2) Mega Rayquaza
- Fast Attack: Dragon Tail
- Charged Attacks: Breaking Swipe and Dragon Ascent
3) Mega Gallade
- Fast Attack: Psycho Cut
- Charged Attacks: Leaf Blade and Close Combat
4) Primal Groudon
- Fast Attack: Mud Shot
- Charged Attacks: Fire Punch and Precipice Blades
5) Mega Gengar
- Fast Attack: Shadow Claw
- Charged Attacks: Shadow Punch and Shadow Ball
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Top non-Mega switches
1) Origin Forme Palkia
- Fast Attack: Dragon Breath
- Charged Attacks: Aqua Tail and Spacial Rend
2) Marshadow
- Fast Attack: Sucker Punch
- Charged Attacks: Ice Punch and Close Combat
3) Complete Forme Zygarde
- Fast Attack: Dragon Tail
- Charged Attacks: Crunch and Earthquake
4) Incarnate Forme Enamorus
- Fast Attack: Sucker Punch
- Charged Attacks: Ice Punch and Close Combat
5) Kyurem
- Fast Attack: Dragon Breath
- Charged Attacks: Glaciate and Dragon Claw
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Best closers for Pokemon GO Mega Master League

Top Mega closers
1) Primal Groudon
- Fast Attack: Mud Shot
- Charged Attacks: Fire Punch and Precipice Blades
2) Mega Rayquaza
- Fast Attack: Dragon Tail
- Charged Attacks: Breaking Swipe and Dragon Ascent
3) Primal Kyogre
- Fast Attack: Waterfall
- Charged Attacks: Surf and Thunder
4) Mega Gyarados
- Fast Attack: Dragon Breath
- Charged Attacks: Aqua Tail and Crunch
5) Mega Swampert
- Fast Attack: Mud Shot
- Charged Attacks: Hydro Cannon and Earthquake
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Top non-Mega closers
1) Shadow Ho-Oh
- Fast Attack: Incinerate
- Charged Attacks: Sacred Fire and Brave Bird
2) Zekrom
- Fast Attack: Dragon Breath
- Charged Attacks: Crunch and Wild Charge
3) Black Kyurem
- Fast Attack: Shadow Claw
- Charged Attacks: Fusion Bolt and Freeze Shock
4) Florges
- Fast Attack: Fairy Wind
- Charged Attacks: Moonblast and Disarming Voice
5) Xerneas
- Fast Attack: Geomancy
- Charged Attacks: Close Combat and Moonblast
Also read: Black Kyurem vs White Kyurem: Which is the better form in Pokemon GO?
Check out our other Pokemon GO guides:
- Ditto disguises
- Buddy Evolution Adventure Together guide
- Best Fast Attacks in Pokemon GO
- Sierra counters
- Cliff counters
- Arlo counters
- Giovanni counters
- Team GO Rocket Grunts
- Pokemon Go Evolution Calculator
- Pokemon Type Calculator
🚨 Calculate the Pokemon type effectiveness to win battles with our newly launched Pokemon GO Type Calculator 🚨