Move Changes in XY
All the following moves have had changes, mainly in accuracy or power. More details here
Acid Armor
Air Cutter
Air Slash
Assurance
Aura Sphere
Barrier
Blizzard
Bubble
Charm
Chatter
Covet
Crabhammer
Draco Meteor
Dragon Pulse
Energy Ball
Extrasensory
Fire Blast
Fire Pledge
Flamethrower
Frost Breath
Fury Cutter
Future Sight
Glare
Grass Pledge
Growth
Gunk Shot
Heat Wave
Hex
Hidden Power
Hurricane
Hydro Pump
Ice Beam
Incinerate
Knock Off
Leaf Storm
Lick
Low Sweep
Storm Throw
Struggle Bug
Surf
Sweet Kiss
Swords Dance
Synchronoise
Tailwind
Techno Blast
Thief
Thunder
Thunderbolt
Vine Whip
Wake-Up Slap
Water Pledge
Whirlwind
Will-O-Wisp
New moves have also been added
Abilities Which Have Been Altered
Drizzle Weather effects now last only up to 5 turns
Drought Weather effects now last only up to 5 turns
Infiltrator Can now go through Substiute
Keen Eye Ignores both Evasion and Accuracy now
Oblivious Prevents Taunt now as well as infatuation
Overcoat Now protects Pokemon from all Powder moves eg. Poison Powder as well as
weather effects
Sand Stream Weather effects now last only up to 5 turns
Snow Warning Weather effects now last only up to 5 turns
Source
New Abilities have been added too
New Features
Horde Encounters
Sky Battles
Mega Evolution
Experience gained when Pokemon is caught
Ride certain Pokemon
Rollerblades
Trainer Customisation
Language Selection
Photo Spots
Player Search System (PSS)
Super Training
Poke-Amie
Friend Safari
All Pokemon in party get EXP when EXP Share is activated
When a Pokemon is to evolve at a certain level it will gain boosted when it is in battle at that level or over it, it continues until the Pokemon evolves
3 hearts in PokeAmie result in boosted experience
Dex Nav (ORAS)
Changed Mechanics
Increased Shiny Rate of 1/4096
Mothers now passes on the ball she/it is in to her/its offspring
Males can now pass down Hidden Abilities
Destiny Knot now passes down 5IVs
Shiny Charm + Masuda Method gets up to a 1/512 chance of a shiny egg
Sources : 1, 2 , 3, 4
