Up-to-date as of Scarlet and Violet, pre-DLC.
- Acid Spray (Drops target's Special Defense by two stages)
- Anchor Shot (Traps target)
- Apple Acid (Drops target's Special Defense by one stage)
- Aqua Step (Boosts user's Speed by one stage)
- Aura Wheel (Raises user's Speed by one stage)
- Bitter Malice (Lowers target's Attack by one stage)
- Breaking Swipe (Drops target's Attack by one stage)
- Bulldoze (Drops target's Speed by one stage)
- Buzzy Buzz (Paralyses target)
- Ceaseless Edge (Sets Spikes on target's side of the field)
- Chatter (Confuses target)
- Chilling Water (Drops target's Attack by one stage)
- Clangorous Soulblaze (Raises all of the user's stats by one stage)
- Drum Beating (Drops target's Speed by one stage)
- Dynamic Punch (Confuses target)
- Eerie Spell (Reduces PP of target's last move by 3)
- Electroweb (Drops target's Speed by one stage)
- Esper Wing (Boosts user's Speed by one stage)
- Fake Out (Flinches target)
- Fire Lash (Drops target's Defense by one stage)
- Flame Charge (Drops target's Speed by one stage)
- Flower Trick (Always crits)*
- Frost Breath (Always crits)*
- Gensis Supernova (Sets Psychic Terrain)
- Glaciate (Drops target's Speed by one stage)
- Grav Apple (Drops target's Defense by one stage)
- Icy Wind (Drops target's Speed by one stage)
- Inferno (Burns target)
- Low Sweep (Drops target's Speed by one stage)
- Lumina Crash (Drops target's Special Defense by two stages)
- Lunge (Drops target's Attack by one stage)
- Mud Shot (Drops target's Speed by one stage)
- Mud-Slap (Drops target's accuracy by one stage)
- Mystical Fire (Drops target's Special Attack by one stage)
- Mystical Power (Boosts user's Special Attack by one stage)
- Nuzzle (Paralyses target)
- Order Up (Increases either Attack, Defense, or Speed by one stage depending on the Tatsugiri in the user's mouth via Commander)
- Pounce (Drops target's Speed by one stage)
- Power-Up Punch (Boosts user's Attack by one stage)
- Psyshield Bash (Boosts user's Defense by one stage)
- Rock Tomb (Drops target's Speed by one stage)
- Salt Cure (Inflicts the target with the Salt Cure condition)
- Sizzly Slide (Burns target)
- Skitter Smack (Drops target's Special Attack by one stage)
- Snarl (Drops target's Special Attack by one stage)
- Sparkling Aria (Cures target's burn)
- Spirit Break (Drops target's Special Attack by one stage)
- Spirit Shackle (Traps target)
- Stoked Sparksurfer (Paralyses target)
- Storm Throw (Always crits)*
- Struggle Bug (Drops target's Special Attack by one stage)
- Surging Strikes (Always crits)*
- Throat Chop (Prevents target from using sound-based moves)
- Thunderous Kick (Drops target's Defense by one stage)
- Torch Song (Boosts user's Special Attack by one stage)
- Trailblaze (Boosts user's Speed by one stage)
- Trop Kick (Drops target's Attack by one stage)
- Wicked Blow (Always crits)*
- Zap Cannon (Paralyses target)
Source
Note that this source doesn't yet include moves from Legends: Arceus or Gen IX, so I had to manually go through those move pages. It's possible that some moves were overlooked or erroneously put on this list when they don't belong.
*High critical-hit ratio does not count as a secondary effect, so Flower Trick, Frost Breath, Storm Throw, Surging Strikes, and Wicked Blow actually do not belong on this list, but I put them here just in case.
Comment if I missed something.
