Make the Rift Herald Buff drop on the floor if the holder dies

Right now it's wayyyyy too much of an advantage for the player who gets it early

Make it so if the holder of the Rift Herald buff dies, the buff drops on the floor where he died, and someone from either team can pick it up

If that's not a good idea, make it so the killer just gets the buff

For both ideas, make the total time of the buff 20 mins only, i.e., the time from the first person who gets the buff until the buff dies is 20 mins, regardless of who picks it up later