Raul and Guti both struck twice for Real, with Julio Baptista, Arjen Robben and Royston Drenthe also getting on the scoresheet in the amazing triumph.
"It is surprising that a team plays like this at the Bernabeu. It has favored us."
Schuster was especially pleased with Guti's performance, as the midfielder hasn't maintained a regular first team place this season.
"When you give a first team chance to a player, this is the answer you want. You want the player to repay the confidence you've shown in him and this is what he is doing. We know who he is, but it is necessary to demand this from him.
"Guti sees things a second before everyone else. For our game, it is most important we have someone who can create."