Amumu is a great jungle champion for Low elo. He stomps most matchups and is great against assasins. He does incredible damage even as a tank and has a LOT of cc. His ultimate is a game changer, and his q is incredible for ganks and jungle clear. He is simple to play and one of the best ap jungle champions you can pick. Take advantage of his passive, you deal 10% true damage if you AA or W your opponent.