Gurkinn's Blaziken was first seen in the Lucarionite cave and it was the final trial
Korrina's Lucario had to overcome in order to obtain the Lucarionite to Mega Evolve.
Clemont noted in the battled that
Gurkinn's Blaziken moves very fast and is extremely strong. Despite knocking Lucario against the cave wall, Lucario was determined and it managed to fight back to the point that it had knocked Blaziken onto the ground and just as it was about to be knocked out,
Gurkinn appeared and called the battle a win for
Korrina's Lucario.
Gurkinn had never revealed to
Korrina that he had a Blaziken and he always knew she would finish her training and come to the cave for the Lucarionite.
Since
Gurkinn was not commanding his Blaziken in the battle, the only move that can be confirmed is the Flamethrower that
Ash Ketchum identified in the battle.