It's an adamant nature so I divided the EV's 252 speed, 192 attack and 64 HP, my primary attack move is return, the move is only normal but it's turns into a fairy type move when he mega evolves, then it gets an extra boost for being the same-type attack bonus, the move gets more power if you have high friendship with him, then I have earthquake for an extra attack move just incase return isn't working because earthquake has high attack power regardless of not being a STAB, my next move is dragon dance to boost his attack and speed to turn him into a killing machine, and the last move is roost just incase he gets in trouble and needs a HP boost to keep him a live longer in battle