Mega Kangaskhan is a Pokémon with double the power-- literally. Using its Ability, Parental Bond, the moves that don't normally hit twice hit twice. Moves like Power-Up Punch can become extremely fatal, but if Parental Bond works with 1-5 hit moves? That could be deadly! So what I am saying is get a Pokémon who can protect your Kangaskhan in some way, and allow her to brute-force through the battle! It's almost unbeatable, from what I've heard!