scrappy is the preferred ability on the base kangaskhan cause of intimidate immumity and allowing to fake-out ghost types before mega. power-up punch is powerful on this as it allows you to boost attack by 2 instead of the usual 1 plus it damages the opponent. body slam can be good as a primary stab move as its chande to paralyze the opponent and the fact it also hits twice increasinf the odds, however return can be good for the damage or facade if status conditions are a common threat in the meta. finally sucker punch for priority and the ability to hit dark typed when mega or bite with its flinch chance and also hitting ghost types but losing the priority option. tailwind will normally be better than tr with its 90 base speed or 100 speed after mega