Mewtwo @Life Orb/Choice Specs
EVs: 76 Atk / 212 SAtk / 220 Spd
Timid Nature
-Shadow Ball
-Ice Beam
-Thunder
-Focus Punch/Aura Sphere
An all out attacker. This set takes advantage of Mewtwo's diverse movepool to
cover every Pokemon in ubers, including Blissey. Move the Atk EVs into HP if
you're not using Focus Punch.
This is for Mewtwo
Mew @Leftovers
EVs: 252 HP / 36 SDef / 220 Spd
Timid Nature
-Nasty Plot
-Baton Pass
-Hypnosis
-Substitute/Taunt/Dark Pulse
Mew is the only uber that can Baton Pass, and this is the special passing set.
Along with Nasty Plot, Mew can also pass 101-HP Substitutes, put counters to
sleep with Hypnosis or Taunt to prevent them from setting up. If you really
prefer to have an attacking move, Dark Pulse is your best choice since nothing
is immune to it and it can hit most ubers supereffectively.
Mew @Leftovers
EVs: 252 HP / 36 SDef / 220 Spd
Jolly Nature
-Swords Dance
-Baton Pass
-Substitute/Hypnosis
-Taunt/Shadow Claw
Similar to the first set, but this time you're passing Attack with Swords
Dance. Otherwise, the idea is the same.
Mew @Leftovers/Life Orb
EVs: 36 HP / 252 SAtk / 220 Spd
Timid Nature
-Dark Pulse
-Ice Beam/Grass Knot
-Nasty Plot
-Taunt/Baton Pass/Hypnosis
Mew has good Sp. Attack as well, and can boost it even higher with Nasty Plot.
As mentioned, Dark Pulse is effective against most ubers (who are Psychic),
Ice Beam hits all the Dragon ubers, while Grass Knot is particularily effective
against Kyogre and Groudon. Your last slot is reserved for moves that disable
counters or in Baton Pass's case, escape from them.
Mew @Leftovers/Life Orb
EVs: 36 HP / 252 Atk / 220 Spd
Jolly Nature
-Earthquake
-Shadow Claw
-Swords Dance
-Taunt/Baton Pass/Hypnosis
Physical variant of above set. Earthquake and Shadow Claw cover a lot of
opponents you may face in ubers, although you can work in other physical
attacks into this set if you'd like.
Mew @Leftovers
EVs: 252 HP / 36 SDef / 220 Spd
Timid/Jolly Nature
-Transform
-Hypnosis
-Reflect/Light Screen
-Softboiled
This set is neither special nor physical, but is whatever opponent you turn
into. Transform can be a really fun surprise against your opponent and the
last three moves are used to help you survive longer
Found these both on Arkeis, so they are not really mine