Eichel, who had NHL career highs in goals (25), assists (39) and points (64) in 67 games last season, could play center with Sheary and Skinner on the top line this season.
"Both of them can skate, both of them have speed, and I think that's something we needed to add," Eichel said. "They've got skill. They can make a lot of plays."
Eichel also praised the other acquisitions for their leadership.
"Berglund, Sobotka, they've been around for a while and I think that could bring a good element to our team," he said. "And you bring some young guys in, and they're excited about their roles, I'm sure."
The No. 2 pick in the 2015 NHL Draft, Eichel said he'd help Dahlin handle the pressure and expectations that come with being a high draft pick.
"The hockey part, obviously, will be a bit of an adjustment," Eichel said of Dahlin, who played last season with Frolunda of the Swedish Hockey League. "Somebody with his talent and somebody who cares about hockey the way I think he does, I think that side of things will happen naturally for him. ... We're so lucky to have him, and there will be a lot of people helping him out."