>>51783384Looked it up on Bulbapedia and had to rewatch some battles to make sure.
>Used by Gail's Druddigon against Georgia's Bisharp1vs1
>Used by Drayden's Druddigon against Iris's Dragonite2vs2, but Dragonite was her last pokémon so the effect ddidn't activate
>Used by Clair's Druddigon against Iris's Dragonite1vs1
>Used by Trip's SerperiorAll the battles it was used in were 1vs1 (vs Pignite and vs Pikachu)
>Used by Ash's Charizard vs Iris's Dragonite1vs1
>Used by Grant's TyruntIt was used to defeat Fletchling. Since the target was defeated, the effect didn't activate
>Used by Clemont's HelioliskIt was used in 2 battles, first in XY009 (1vs1) and then in XY067 (the effect didn't activate. First time the move should've worked but didn't)
>Used by Trevor's Mega Charizard YUsed only once. Alain's Charizard dodged it.
>Used by Sawyet's SalamenceUsed to hit Noivern. Effect didn't activate
>Used by Lysandre's Mega GyaradosIt hit Greninja, Talonflame and Mega Charizard at the same time. Didn't work on Ash's pokémon because everyone else had fainted at that point. I guess Alain wasn't carrying his other pokémon with him?
>Used by Kiawe's TurtonatorMostly 1vs1 battles except the battle with Gladion. Turtonator hit Lycanroc and the effect didn't activate
>Used by a wild Onix against Riolu1vs1 battle
So yeah, there's at least 3 instances of the move's effect failing to activate