United One

Sephiroth had been in denial for far too long. But his recent Gym challenge forced him to accept it. His Pokémon surpassed him in strength and that frustrated him. Extremely.

Something in this place had taken a great deal of his power away. He resented that.

It was unclear even to him whether he was just lashing out at his surroundings or trying to regain power.

Trees were felled by his sword, their remains burned by Fire.(good thing the area tends to be damp) Lightning and Ice were thrown at anything within range. He was tiring much more quickly than was right. But that only made him angrier and his attacks more ferocious.

If anyone saw him they'd probably think he'd gone mad but, he didn't care. He wasn't going to stop unless he was forced.

[ He's likely to attack anyone that gets in his way to try to stop him but, he'll have enough restraint to not go for a kill. And if found after he wears himself out he'll be collapsed next to a bunch of fallen trees with his sword still in his hand and his wing out and half covering him. ]