Mewtwo Duo Raid Guide

Pros:

• Amazingly high DPS! After Mega Boosts, nears solo-level. 
• Mega Evolution, grants whole-team damage boosts and increases Ghost Type attack damage while on the field.
• Since Ghost Types tend to have the highest DPS in this raid, a well timed Mega Gengar can allow the team to take gigantic chunks of HP off of the raid boss.
• Triple resists Focus Blast

Cons:

• Mega Evolution, Mega Energy can be hard to obtain.
• Weak to Psychic Type movesets

Pros:

• Top TDO option for this raid, able to stay alive for a prolonged period of time and still has solid DPS to back it up.
• Mega Evolution, grants whole-team damage boosts and increases Dark Type attack damage while on the field.
• Since Dark Types tend to have the highest TDO among the counters for this raid, Mega Gyarados is a great choice to stick at the back of a team in order to give the final push more power.
• Double resists Psychic Type movesets, resists Ice Beam and Flamethrower

Cons:

• Mega Evolution, Mega Energy can be hard to obtain.
• Weak to Focus Blast and Thunderbolt

Pros:

• Similar performance to Mega Gyarados, but trades some TDO for a bit of DPS
• Mega Evolution, grants whole-team damage boosts and increases Dark Type attack damage while on the field.
• Double resists Psychic Type movesets, resists Ice Beam and Flamethrower

Cons:

• Mega Evolution, Mega Energy can be hard to obtain.
• Weak to Focus Blast

Pros:

• Mega Evolution, grants whole-team damage boosts and increases Bug Type attack damage while on the field.
• Nears Mega Gengar's performance in the rain
• Double-resists Focus Blast

Cons:

• Mega Evolution, Mega Energy can be hard to obtain.
• Weak to Psychic Type movesets and Flamethrower
• Outside of weather boosts, has the lowest performance of any Mega Evolution, and its boosts are generally not valuable. Mega Beedrill is best used as a budget Mega option.

Pros:

• Top DPS counter of any Pokemon not named Mega Gengar
• Double-resists Psychic Type movesets, resists Ice Beam

Cons:

• Shadow Pokemon, expensive to raise and requires an event to remove Frustration
• Double weak to Focus Blast, weak to Flamethrower

Pros:

• Great mix of DPS/TDO for this fight
• Has no weaknesses in this raid
• Resists Psychic Type movesets and Focus Blast

Cons:

• Shadow Pokemon, expensive to raise and requires an event to remove Frustration
• Legendary Pokemon, candy can be difficult to obtain
• Fast moves are resisted

Pros:

• The Great Wall. Giratina - Origin Forme boasts the highest TDO of all non-Mega counters in this raid while keeping solid DPS
• Resists Flamethrower and Thunderbolt, double resists Focus Blast

Cons:

• Weak to Ice Beam
• Legendary Pokemon, candy can be difficult to obtain

Pros:

• Very solid overall counter, sports solid DPS and TDO.
• Double-resists Psychic Type movesets

Cons:

• Mythical Pokemon, candy can be difficult to obtain and cannot be traded
• Weak to Focus Blast

Pros:

• Performance is nearly identical to Darkrai on average
• Resists Flamethrower, double resists Psychic Type movesets

Cons:

• Shadow Pokemon, expensive to raise and requires an event to remove Frustration
• Double weak to Focus Blast

Pros:

• The best overall non-Shadow/Legendary/Mythical/Mega Pokemon for this raid
• Resists Flamethrower and Ice Beam, double resists Focus Blast

Pros:

• Resists Ice Beam and Flamethrower, double resists Psychic Type movesets

Cons:

• Weak to Focus Blast
• Shadow Pokemon, expensive to raise and requires an event to remove Frustration

Pros:

• Double resists Focus Blast

Cons:

• Shadow Pokemon, expensive to raise and requires an event to remove Frustration

Pros:

• Triple resists Focus Blast

Cons:

• Weak to Psychic Type movesets

Pros:

• High damage potential, great for getting ahead of the clock
• Double resists Focus Blast

Cons:

• Shadow Pokemon, expensive to raise and requires an event to remove Frustration
• Very frail, dodging is borderline mandatory for efficient use 

Pros:

• Double resists Psychic Type movesets

Cons:

• Shadow Pokemon, expensive to raise and requires an event to remove Frustration
• Very frail, dodging is borderline mandatory for efficient use 
• Weak to Focus Blast

Pros:

• Resists Focus Blast

Cons:

• Shadow Pokemon, expensive to raise and requires an event to remove Frustration
• Frail, dodging is appreciated
• Generally only viable in Rainy weather and/or with Mega Beedrill active.

Pros:

• Resists Psychic Type movesets and Ice Beam

Cons:

• Shadow Pokemon, expensive to raise and requires an event to remove Frustration
• Frail, dodging is appreciated
• Generally only viable in Rainy weather and/or with Mega Beedrill active.
• Double weak to Flamethrower