Roy and the mage he fought were already flying so far above. But the battle didn't just happen over there.
Andro and the Kaiser Tortoise also faced each other. But unknown to Andro, the Kaiser Tortoise was totally aware of what he's doing.
Andro thought that the Kaiser Tortoise has been totally under the control of his master. But the Kaiser Tortoise still managed to hold a bit of his consciousness.
Even then, the Kaiser Tortoise was not able to disobey the order of his master. So he had no choice but to fight Andro.
'Dragon! Don't kill me yet! I have something that I need to do! Shit! If only I can relay a message for a moment to him, then I don't mind being killed,' the Kaiser Tortoise thought.
He was totally aware of the one whom he was fighting. The Kaiser monsters knew each other. But most of the time, they never crossed each other's line. They never fight at all.