They need to be able to turn the first touch into a solid pass to the setter. They also may need to set the ball from the back row if the setter isn't available. ... They cannot block, set an attack from the front court or attack the ball above the height of the net.
Can a setter block?
As a back row setter, you cannot block or attack the ball or hit the ball at all above the net. ... If you touch the ball at the same time as a blocker on the opposing team, you also commit an illegal block.
Can you block a setter volleyball?
Volleyball block rules prevent you from blocking an opposing team's setter who's attempting to set a ball. You can block someone who's hitting a ball as long as you are separated by the net, but you can't block a player who is setting the ball to another player on their team.