Vagrant
The Czech Condor
Ristolainen is a damn stud also. I can see Ristolainen and Eichel anchoring the Sabres similar to how Hedman and Stamkos did/do in Tampa. Not saying they'll be as good as those 2, but they won't be far off IMO.
He's the defense version of Aho. Just a guy who will always be beloved in Finland for his contributions at the U20 scoring the golden goal a few years back. He's the real deal too.