Giants leap

Giant ancestry feat: gained at level 3

Grand Slam:

Once every long rest you may use some of your giants strength to do a running high jump with double the hight towards a target and attack them as you land on them. Roll two strength checks and  if total exceeds 35 then this ability succeeds. (DC 17.5)

— if you hit the target your fall damage and strength modifier will be added to your total weapon damage and will nullify your damage taken from falling.

— If you miss you take fall damage, get the probe condition and become vulnerable to oppitunity attacks if in range.

 —if you fail the saving throw you do a normal running high jump towards the enemy taking fall damage and being vulnerable to opportunity attacks.