NFEs that now have over 500 BST (Porygon2 was already there but still a nice bonus). The added bulk is exponentially beneficial to some thanks to Eviolite (Tangela, Magneton, Magmar), while others gained the offensive presence that may have previously held them back (Dusclops, Chansey, lolOnix? that's the fastest and hardest hitting EdgeQuake in the game you're looking at)
Dusclops 40/130/130/130/130/25
Tangela 65/115/115/100/100/60
Scyther 70/110/110/80/80/105
Magneton 50/95/95/120/120/70
Magmar 65/95/95/100/100/93
Porygon2 85/90/90/105/105/60
Electabuzz 65/83/83/95/95/105
Chansey 250/5/5/105/105/50
Seadra 55/95/95/95/95/85
Onix 35/160/160/45/45/70
Sneasel 55/95/95/75/75/115
Nosepass 30/135/135/90/90/30
Sliggoo 68/75/75/113/113/60
EDIT: Also, never mind Mega Aggron. Regular old Aggron is bringing about that STAB Rock Head / Head Smash off 180 Attack. Choice Band and go to work.
Steelix' Gyro Ball is the only thing that can hit harder unboosted, but opponent must have a minimum of 322 Speed (ie. max investment + nature base 97 at minimum, or same investment scarfed 48 lol) to match with 138 BP.
252+ Atk Shuckle Stone Edge vs. 0 HP / 0 Def Mew: 280-330 (82.1 - 96.7%) -- guaranteed 2HKO
252+ Atk Avalugg Avalanche vs. 0 HP / 0 Def Mew: 280-331 (82.1 - 97%) -- guaranteed 2HKO
252+ Atk Cloyster Icicle Spear (5 hits) vs. 0 HP / 0 Def Mew: 290-345 (85 - 101.1%) -- approx. 6.3% chance to OHKO
252+ Atk Sheer Force Darmanitan Flare Blitz vs. 0 HP / 0 Def Mew: 295-348 (86.5 - 102%) -- 12.5% chance to OHKO
252+ Atk Mega Heracross Pin Missile (5 hits) vs. 0 HP / 0 Def Manaphy: 290-350 (85 - 102.6%) -- approx. 6.3% chance to OHKO
252+ Atk Adaptability Mega Lucario Close Combat vs. 0 HP / 0 Def Manaphy: 312-368 (91.4 - 107.9%) -- 50% chance to OHKO
252+ Atk Aerilate Mega Pinsir Thrash vs. 0 HP / 0 Def Manaphy: 319-376 (93.5 - 110.2%) -- 62.5% chance to OHKO
252+ Atk Mega Aggron Heavy Slam (120 BP) vs. 0 HP / 0 Def Mew: 336-396 (98.5 - 116.1%) -- 87.5% chance to OHKO
252+ Atk Aggron Head Smash vs. 0 HP / 0 Def Mew: 345-406 (101.1 - 119%) -- guaranteed OHKO
252+ Atk Steelix Gyro Ball (138 BP) vs. 0 HP / 0 Def Mew: 345-406 (101.1 - 119%) -- guaranteed OHKO
252+ Atk Steelix Gyro Ball (150 BP) vs. 0 HP / 0 Def Mew: 373-441 (109.3 - 129.3%) -- guaranteed OHKO