Leviathan vs Greninja

Suggested by Sonic Leviathan is a very powerful being who is summoned in times of hardship. He is a beast who scours the seas and destroys all. Greninja’s water shruiken won’t do much here, but fortunately for the Pokemon he has also got his Mega form. In that mode his stats are increased around the board to the point where the damage will build up quite rapidly. Leviathan makes for a huge target and that will be his downfall. Greninja wins.