Noivern - All special attacks count as sound moves. Gives Punk Rock effect.
Sceptile - Attack scales with Special Attack. Gives Tough Claws effect
Blaziken - If it has Blaze, gives Technician effect. Does nothing if it has Speed Boost
Luxray - Gives +1 priority to biting moves. Gives Strong Jaw effect
Garchomp - Swaps Attack and Special Attack.
Flygon - Special Attack scales with Attack. Gives 1.5x boost to Bug moves.
Samurott - Gives 1.5x boost to Speed and cutting moves. Automatically uses the first cutting move in its moveset when switching in.
Golisopod - If Emergency Exit is activated before it can attack, it will attack before switching out. Gives 1.25x boost to Special Defense.
Xatu - Future Sight hits the turn it is used. (Can't think of anything else for this one)
Girafarig - Biting moves count as special attacks. Gives Strong Jaw effect. When hit with a contact move, counters with a super-effective biting move (except Bite) if the attacker is weak to one; uses a neutral move otherwise. If a contact move would KO, Girafarig will counter before fainting.
Liiligant - Gives Dancer effect. Dancer also works with the users dancing moves.
Delcatty - Doubles Attack and Special Attack. Normalize moves keep their original typing but still get STAB.