Necro
Whenever this meta gets picked up for XY again, here are the notable changes and additions. Technician BP in (brackets)
First up BP changes
Air Cutter - 55 (82.5) to 60 (90) - slight power fuff, and crits are much easier to abuse this gen
Assurance - 50 (75) to 60 (90) - now much more solid competition for best physical Dark move
Frost Breath - 40 (60) to 60 (90) - even with crits only doing 1.5x damage, this is still a buff to an effective 135 BP
Fury Cutter - 20 (30) to 40 (60) - power progression is now 60-80-160, increasing its viability
Heat Wave - 100 to 95 - drops under 100 BP, making it now legal in the meta
Hex - 50 (75) to 65 - ghosts lose a viable STAB move
Incinerate - 30 (45) to 60 (90) - now a viable Fire move with the added bonus of burning away berries
Low Sweep - 60 (90) to 65 - a huge blow to Fighting-types, as this was their go-to STAB
Pin Missile - 14 (21) to 25 (37.5) - joins the multitudes of powerful multi-hit attacks at an average 112.5 BP, and takes the throne of best physical Bug STAB
Rock Tomb - 50 (75) to 60 (90) - straight buff
Storm Throw - 40 (60) to 60 (90) - see Frost Breath
Struggle Bug - 30 (45) to 50 (75) - with guaranteed SpA drop, this is now the special Bug STAB of choice
Thief - 40 (60) to 60 (90) - adding to the crowded pool of physical Dark STABs, now with item stealing fun!
Notable new additions
Draining Kiss - 50 (75) - with 75% drain, this is the best special Fairy STAB
Parabolic Charge - 50 (75) - 50% drain Electric attack
Power-Up Punch - 40 (60) - increases Attack one stage, now with somewhat useable BP
Water Shuriken - 15 (22.5) - average 67.5 BP priority attack
Also of note is that as Technician replaces ALL abilities, certain power houses are brought back down to earth. Mega Kangaskhan, Mega Gengar, Mega Pinsir, Aegislash, Talonflame, and Greninja are standouts that are heavily nerfed.