Charizard was momentarily dumb founded by the fact that the building was not deserted at all. And if it wasn't for the patterns on the area that Ivysaur was training on, she would not have realized it was a Stadium of any sort, either. She bit down on the strap of the pouch she had been carrying in her claws, and turned around, closing the doors behind her.

She spread her wings from around her body, stretching, but kept quiet while watching Ivysaur train. She didn't want to break her concentration- even if she was sure Ivysaur was the type to stay calm during almost any situation.
She had already recognized her team, but would wait to greet them after Ivysaur was done fighting. She did not, however, recognize the little kid with the antennae-like hair.

Oh well, she thought. If he was a threat, Ivysaur's there, and the kid would've told one of them to do something. So so far, the little kid was alright in her mind.