Sabres coach Ralph Krueger suggested Vegas' aggressive defensive scheme will make Miller a fit on the ice as well.
"I spoke with Colin this morning, he's up in Sault Ste. Marie, and we had an excellent conversation," Krueger said. "His energy that he brings, the experiences he's had now with Vegas, a team that plays on its toes, that likes to have an aggressive defensive style, really suits us."
Miller led Golden Knights defensemen in assists (57) and points (70) over the past two seasons, but it's his possession numbers that standout most. His Corsi-for percentage since entering the NHL in 2015-16 is 56.13, which leads all NHL defensemen in that span (min. 82 games played).
The addition of Miller bolsters the right side of Buffalo's defense corps, where he joins a mix that already includes Rasmus Ristolainen, Brandon Montour, Zach Bogosian and Casey Nelson, with William Borgen expected to compete for an NHL spot after a strong rookie season in Rochester.
That's a crowded field, but with injuries having bit the Sabres' defense in recent seasons - Bogosian is currently recovering from hip surgery - Botterill said the move was made to add depth as well as internal competition.
"Right now, to me, this gives us options," he said. "It gives Ralph flexibility with the lineup. You look at our defense corps the last couple years, we've dealt with injuries. We wanted to improve our competition and improve our depth, and that's why we made the move."
Botterill reiterated the value the organization places on Ristolainen, adding that the defenseman has had positive discussions with Krueger since the coach's hiring in May. Krueger said he believes Ristolainen's game can improve within the confines of his system.