Ok, so in regards to the above stuff, here’s a list of moves that have no native learners, but CAN be called by Metronome and aren’t “snapped” according to Serebii.
-Core Enforcer
-Tail Glow
-Dragon Hammer
-Roar of Time
-Spacial Rend
-Geomancy
-Fiery Dance
-Oblivion Wing
-Magma Storm
-Aeroblast
-Shadow Force
-Shadow Bone
-Seed Flare
-Bonemerang
-Land’s Wraith
-Shore Up
-Ice Hammer
-Crush Grip
-Head Charge
-Hold Back
-Milk Drink
-Revelation Dance
-Toxic Thread
-Lunar Dance
-Heart Swap
-Mist Ball
-Luster Purge
-Psycho Boost
-Accelerock (has animation)
Other than Accelerock, these move need to be tested to see if they have animations or not. We don’t know if these moves pull a 1.1.0 Fairy Lock and crash the game with animations on or not, so do your thing, researchers!
Judging by the Instruct shenanigan a bit further back on this thread, they probably did this to prevent random self damage.
And no, I haven’t seen this happen.