Cards needed:

-Destiny hero Dasher (In the field)
-DAD
-Dark Monsters in your hand.

Well you have 3 Dark monsters in your grave, DAD and some dark monsters in your hand that can be normal summoned and are 4 stars or lower and Destiny hero Dasher in the field.

You SS DAD and use his effect, but the opponent still having a face down moster on the field, you normal summon a dark monster and you use Dasher effect and send it to the grave, you use DAD effect an clean the field.
And even if you don't win there you are going to have (probably) a "recharge" for DAD effect every turn.

Not much of a combo... its just using Dasher's effect, but you just happened to have a DAD on the field, so it sort of helps DAD clear the field.