"He's got an incredible amount of attributes to go with the size, and obviously the size is his height now but it's going to continue to become strength, even more strength," Sabres coach Don Granato said.
"He's a great athlete, so the athleticism is there, but the feel, he's got an unbelievable calm to his game. He can slow the pace down and dictate a pace."
The 6-foot-6 defenseman played against men - including current and former NHL players - as a member of Team Canada at the World Championship last May and at the Beijing Olympics in February. His performance garnered him top-pair minutes at both events.
"He does have the advantage of having been to World Championships and playing with men but, you know, it's a different ice sheet," Granato said, referring to the 100-foot-wide international rink. "It's a different game. The NHL is the highest level. It's gonna be fun to watch him go through that process."
Power will join a Sabres roster that already includes 12 players aged 25 or under, including seven first-round picks: Dylan Cozens, Peyton Krebs, Rasmus Dahlin, Henri Jokiharju, Casey Mittelstadt, Tage Thompson, and Alex Tuch.
That group will include four left-shot defensemen with the addition of Power, who joins Dahlin, Mattias Samuelsson, and Jacob Bryson. Adams said Power could potentially see time on the right side during these final games, as Bryson often has this season.