If taking his entire cap hit right now, have him for free. If retained now, probably a 1st+. If taking the entire hit in the summer, probably some combination of seconds and thirds (Bjorkstrand, Burakovsky as comps).

Mantha is a good player but the role he fills is done better by other guys in Laviolette's system. Don't know how TOR would make the cap work but would be a nice fit I think especially to give the third line some scoring punch.