if u ask me mew, lugia, giratina, palkia, dialga, my lvl 80 typhlosion killed mewtwo, heatran, darkrai, and groudon but it is just my oppinion so NO BAD COMMENTS PLEASE!!!!!!!!!!!!!!!!!!
U can't take Mewtwo as a pokemon because the fact s
is that Mewtwo just is a clone of mew, but if u want an answer I would say Mew because a clone can never beat the real one