You know... this was an interesting concept with me.
I was thinking for like a beast champion... void champ... or even a demigod champ, there can be an ability where he or she can pick up an enemy champion, making the enemy champ untargettable for the time being but they are considered stun the whole time they are held (max being 4 seconds) and then can throw them in a long target direction. I know there are a few champs that have a similar concept like lee sin and ESPECIALLY Tahm kench, but I mean full on YEETING someone at their own team as an ultimate.