My real guess is a big octopus. We got one several years ago that was probably 60 pounds in 350' of water. It really kicked my buddies butt. A skate would do the same or some of the larger sharks.
_________________________
Join the Puget Sound Anglers Sno-King Chapter. Meets second Thursday of every month at the SCS Center, 220 Railroad Ave. Edmonds, WA 98020 at 6:30pm Two buildings south of the Edmonds Ferry on the beach.