I just realised. Victini's Incinerate/Complete Burn destroys the opponent's berry, right? Corocoro confirmed that there are no berries in Isshu.
HERP DERP HERP DERP
(Well, there are, but you get them via other means. MY POINT STILL STANDS)
HERP DERP HERP DERP
(Well, there are, but you get them via other means. MY POINT STILL STANDS)