Feherváry is a very good defenceman, but he is also by far, far, far the best player on the Slovak roster. Beside him, Slovakia has not much to offer. However, they should beat Kazakhstan, as well as the Czechs should beat Denmark.
Regarding the possibility of the Czechs being relegated/playing the relegation games: Of course, it can happen, but I believe guys will beat Denmark without any major problems. It will be all about themselves: If they play the game they certainly are capable of, there is no way for Denmark. The gap in the players' individual quality is simply too giant. They can lose the game only if they lose in their own heads first. I believe they will avoid this danger, beat Denmark, and score some goals to gain confidence. I don't see any need to project catastrophic scenarios now: They lost to Russia in a close game, and they lost to Canada in the back-to-back game, which, taking into account the superb qualities Canada possesses, is unpleasant but not disastrous. It is a pity that they didn't earn any points from the RUS and CAN games, but still, there is no need for the guys to feel ashamed.