So what exacley ran through the dragon's minds when evreyone attacked them. Surely they couldn't be thinking the whole time MUST KILL THEM!
Just a random burst of curosity.
They don't really think
. You're thinking of them as fully sapient, but they really aren't. There are creatures attacking them; they perceive the creatures as a threat and attack back, while still only looking forward to their chance to seek out the others and kill them. They don't really have the mental capacity to think
about what's going on, wonder why they're being attacked or what the Pokémon are.
Think of them as… bees or something. Their sole purpose is to kill one another, just like the sole purpose of worker bees is to gather honey; it's just what they do
. If they perceive something as attacking them, however, they will fight it, because being attacked and incapacitated gets in the way of further honey-gathering. Except the dragons don't kill themselves when they fight back.
Speaking of the dragons, why exactly did Polaryu escape early? I just don't understand it.
Chaletwo is always getting weaker, since the Destroyer keeps draining his power away. Eventually, the power keeping Polaryu asleep became so weak that he simply woke up. Chaletwo didn't feel it happening because Polaryu had stopped feeling the existence of the others through his sleep and thus wasn't actively struggling against the power that kept him asleep anymore.