Say hello to maximum hax! Mew with Dynamic Punch and Zap Cannon is hell.
I look forward to playing the meta though. Lotta cool toys to play around with, like Inferno.
The following moves all have 70 or less Accuracy.
Blizzard, Dynamic Punch, Focus Blast, Grass Whistle, Hurricane, Hypnosis, Inferno, Sing, Smog, Supersonic, Thunder, Zap Cannon
(I of course removed the OHKO moves)
Notably, Sleep is easier, Burn+damage is widespread, Confusion is everywhere, and Paralysis is a constant.
80 and below adds the following.
Cross Chop, Dark Void, Dragon Rush, Egg Bomb, Fury Swipes, Gunk Shot, Head Smash, Hydro Pump, Iron Tail, Kinesis, Lovely Kiss, Magma Storm, Mega Kick, Poison Powder, Slam, Sleep Powder, Stone Edge, Submission, Sweet Kiss
Most notably: Dragons running Dragon Rush instead of Outrage, Poison types running Gunk Shot instead of Poison Jab, a number of Steel types running Iron Tail, Head Smash is reliable, Stone Edge is reliable, and Heatran can run Magma Storm easily.
90 and below adds the following.
Aqua Tail, Barrage, Belch, Bind, Blast Burn, Blaze Kick, Blue Flare, Bolt Strike, Bone Club, Bone Rush, Bonemerang, Bounce, Charge Beam, Circle Throw, Clamp, Comet Punch, Crabhammer, Double Hit, Double Slap, Draco Meteor, Dragon Tail, Dual Chop, Fire Blast, Fire Spin, Freeze Shock, Frenzy Plant, Frost Breath, Fury Attack, Gear Grind, Giga Impact, Hammer Arm, Heat Wave, High Jump Kick, Hydro Cannon, Hyper Beam, Hyper Fang, Ice Ball, Ice Burn, Icicle Crash, Leaf Storm, Leaf Tornado, Leech Seed, Light of Ruin, Mega Punch, Megahorn, Metal Sound, Meteor Mash, Mirror Shot, Mud Bomb, Muddy Water, Octazooka, Origin Pulse, Overheat, Play Rough, Poison Gas, Power Whip, Precipice Blades, Present, Psycho Boost, Roar of Time, Rock Blast, Rock Climb, Rock Slide, Rock Throw, Rock Wrecker, Rolling Kick, Rollout, Sand Tomb, Screech, Seed Flare, Sky Attack, Sky Uppercut, Sonic Boom, Steel Wing, Swagger, Tail Slap, Take Down, Triple Kick, Whirlpool, Will-O-Wisp, Wrap, Zen Headbutt
Well, that's a lot. Mostly it makes a number of already popular moves -like High Jump Kick, Leech Seed, Leaf Storm on Serperior, etc- more reliable, thankfully.
Lastly, 95 Accuracy moves.
Aeroblast, Air Cutter, Air Slash, Crush Claw, Cut, Diamond Storm, Drill Run, Electroweb, Fire Fang, Fly, Flying Press, Fury Cutter, Glaciate, Ice Fang, Icy Wind, Jump Kick, Metal Claw, Mud Shot, Night Daze, Pin Missile, Razor Leaf, Razor Shell, Rock Tomb, Sacred Fire, Snarl, Spacial Rend, Steam Eruption, String Shot, Thunder Fang, V-create
Again, nobody ever chooses to not run these moves because of their minor Accuracy issues, but it is nice to be certain that your Mega Beedrill's Drill Run won't cost you Mega Beedrill/the match on a 5% miss rate.
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Sadly, Entei doesn't get Inferno, so it's still stuck with its event-locked Sacred Fire if it wants to spread Burns, and frankly it's probably going to be outclassed by any number of Pokemon with Inferno. Weirdly, Mismagius has Inferno. That's cool.