He's a plug and play option, if your below average 4th line C needs rest. These kind of jack of all trades players are premium.
Imagine NOT having him on ice and your team playing 4 against 5. Add Dvorak and suddenly situation is so much more balanced. Intangibles this guy carries around and no one takes a note.
Wanna win a faceoff? Send him in, then take him out. Boom, another won faceoff in the bank, just like that. They don't make 'em like him anymore. Give him skates and throw in the rink. I'm telling you, he's gonna skate, have puck touches and shifts, the whole enchilada.