Fasching collected 12 goals and 30 points in 69 games for the AHL's Rochester Americans and was held pointless in five NHL contests this season.
The 22-year-old winger managed only three points in 22 games with the Sabres over the last three campaigns. Buffalo drafted him in the fourth round back in 2013.
Hickey chipped in 14 points across 35 games in his senior season with Boston University. He was originally acquired by the Coyotes in the Mike Smith trade with the Calgary Flames, who selected Hickey in the third round in 2014.
Sislo is a journeyman, having spent six years in the New Jersey Devils organization before landing with the AHL's San Antonio Rampage, Toronto Marlies, and then the Coyotes' affiliate, the Tucson Roadrunners.
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