Mew weakness and type

Jolly: For a physical moveset: more Speed, less Sp. Atk. Timid: For a special moveset: more Speed, less Attack.

Hit MEW with Bug, Ghost and Dark for 2× damage.

Moves against Mew

2×Super effective

½×Not very effective

In Pokémon GO: Bug deals 1.6× instead of 2×. GO chart

JollyFor a physical moveset: more Speed, less Sp. Atk.

TimidFor a special moveset: more Speed, less Attack.

Worked out from base stats. Your team may need something else.

Defeating Mew gives 3 HP EVs.

The strongest attacking move it can learn in each type, across all games. Not every game has every move. Same-type moves get a 1.5× bonus.

Type	Move	Kind	Power
Normal	Explosion	Physical	250
Fire	Blast Burn	Special	150
Water	Hydro Cannon	Special	150
Fighting	Focus Punch	Physical	150
Grass	Frenzy Plant	Special	150
Flying	Sky Attack	Physical	140
Steel	Steel Beam	Special	140
Dragon	Draco Meteor	Special	130
Electric	Zap Cannon	Special	120
Bug	Megahorn	Physical	120
Psychic	Future Sightsame type	Special	120
Rock	Meteor Beam	Special	120
Poison	Gunk Shot	Physical	120
Ice	Blizzard	Special	110
Ghost	Poltergeist	Physical	110
Ground	Earthquake	Physical	100
Fairy	Misty Explosion	Special	100
Dark	Foul Play	Physical	95

Regular Pokémon whose same-type moves hit it hard and who take little from its same-type moves. Picked from types and base stats only, not movesets.