Lazer eyes!!!!

Just kidding although I guess laser goggles could be cool or indeed laser eyes. Epic spell animations are very pleasing. Ranged options for rogues like throwing daggers and shurikens are good. I love those blade hands Wolverine from X-Men has so some sort of bladed hand weapon would look and roleplay great. Blackjacks for rogues could be a pssibility although I suspect some players may not appreciate that.
Spirit tentacles or hair tentacles that are spiritual weaponry would be novel. Pranic and chi energy style attacks (probably renamed). Psychic attacks and telepathic takeovers. Medusa the enemy. Turn the enemy into a hippy for a time for the peaceful player.
Exploding arrows of course and various poisons for weapons. Axes that shatter creatures or freeze them.
Divinty 2 weapons were great and a good basis but a few novelties are always welcome.