Misc changes
Players can now forfeit in the middle of a turn, as opposed to just in between turns. This is done by pressing the - button on the left Joy-Con.
If a player is disconnected from the server during a battle, they do not automatically lose the game, instead having a substantial amount of time to reconnect before the connectivity issues result in a loss. If a player was disconnected during a battle, proceeding from the title screen will automatically resume that battle. The turn timer decreases as normal while waiting for that player to reconnect, potentially resulting in the game automatically selecting their moves if the server does not receive a response in time.
Moves that the target Pokémon is doubly weak to or doubly resists are now listed as "extremely effective" and "mostly ineffective", respectively, and have their own icons for such as well, rather than being grouped with regular "super effective" and "not very effective" modifiers.
Level is not displayed, with Pokémon stats being calculated as if they were level 50.
Individual values cannot be modified in-game, with the Pokémon stats being calculated as if they had 31 IVs in all stats.
Effort values are replaced by the new stat points system. In certain circumstances, it is possible to increase stats by one point more than the effort values allow.
Items triggering now causes a pop-up banner to show up (like with Abilities), displaying the item's sprite.
Stat alterations (such as Intimidate's Attack reduction) are now resolved on both opposing Pokémon at once, rather than one by one.
Effects that raise or lower multiple stats at once (such as Parting Shot) now only display one message for all the raised or lowered stats, rather than an individual one for each stat.
Status effect changes
Frozen Pokémon now have a 25% chance to naturally thaw out each turn instead of 20%, and will always thaw out after three turns.
Paralysis now has only 1/8 chance to prevent affected Pokémon from acting, rather than 1/4.
Sleep now lasts 2-3 turns instead of 2-4, with a 2/3 chance to last three turns and a 1/3 chance to last two turns.
Ability changes
Healer now triggers 50% of the time instead of 30%.
Unseen Fist now deals only 25% damage on protecting targets instead of 100%.
Move Changes
Snap Trap had its type changed from Grass to Steel.
Toxic Thread now lowers Speed by two stages rather than one.
Trop Kick and Psyshield Bash had their base power increased from 70 to 85 and 90, respectively.
Apple Acid, Fire Lash, Grav Apple, and Spirit Shackle had their base power increased from 80 to 90.
First Impression had its base power increased from 90 to 100.
Beak Blast and Mountain Gale had their base power increased from 100 to 120.
Bone Rush, Infernal Parade, and Night Daze had their base power increased by 5 each, totaling 30, 65, and 90, respectively.
Crabhammer and Syrup Bomb had their accuracy increased by 5 each, totaling 95% and 90%, respectively.
Iron Head and Moonblast's secondary effect chances were lowered from 30% to 20% and 10%, respectively.
Dire Claw's secondary effect chance was lowered from 50% to 30%. It is also now considered a slicing move.
Crush Claw, Dragon Claw, and Shadow Claw are now considered to be slicing moves.
Dragon Cheer is now considered a sound-based move.
Fake Out and First Impression can no longer be used after the turn the user switches into the battle; if the user is forced to use them when ineligible via effects such as Encore, it will instead use Struggle.
Freeze-Dry can no longer inflict freeze.
Salt Cure's passive damage was halved, dealing 1/16 of target's maximum HP per turn normally, and 1/8 against Water and Steel types.
If a Pokémon is forced to use a different move than selected due to Encore, it will now perform that move at its usual priority, rather than of the move that was selected.
Baneful Bunker, King's Shield, Protect, and Spiky Shield have 8 PP instead of 12, matching Detect.
Beak Blast has 8 PP instead of 16.
Night Slash has 20 PP instead of 16.
Sandstorm and Snowscape have 8 PP instead of 12, matching Sunny Day and Rain Dance.
Item changes
None at the moment
Pokemon Base Stat Changes
None at the moment
Source
