Decisive, fast, he knew what he was doing, sure of himself (even when he did something wrong), and fully in control.
If you are a Werder fan you probably think that was a penalty and if it wasn't a penalty than it was definitely a goal later on. I'm not sure about the penalty claim and Medina Cantalejo stood nearby and seemed to be very sure about it. But why he canceled the goal is not clear. Werrder forward and Shakhtar defender pushed and pulled and stumbled over each other, why one got a free kick and not the other the goal was not clear. One of those Medina Cantalejo things.
And there was the matter of the fist yellow card. Luis seemed to postpone the first booking. In the Spaniard's eyes no foul was bad enough to license such a giant step, the landmark of the first yellow card. Not even when a Werder player was attacked from behind when he was simply standing, waiting for the ball. But after the first yellow 6 more followed and almost every push made Luis pull his card, the lats half hour was not his best.
A few good players and many not so very good players and for a while nothing at all happened. (What was Rosenberg doing in a European final? I have a 12 year old nephew who can do better than that) And what will Shakhtar do with all those Brazilians (even the Brazilian president was there) when the 6/5 rule is installed?