This drill can be used as a base for a variety of attacks. Player 1 (acting as an opposition player), serves to player 3 who defensive digs to player 4. Player 4 sets the ball to player 2, who will have made an attacking run to meet the ball and smashes it over the net.
The attacking run from Player 2 should arc to attempt to deceive the opposition as to where player 2 will smash.
World Rugby has reportedly conceded Aaron Smith's disallowed try in the World Cup final should have stood.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.