[@Pyromaniacwolf]
I'm not too interested in werewolves(I also find it a bit strange that lycans are werewolf descendants, I always imagined it was vice-versa; but semantics, its your race.), but void magic is ripe with flavor.
Overall I'm liking the feel of your lycan void sorcerer, but I do have some things to adress

Void magic is really cool, however I'd like to compensate its power with a bit more of a chaotic feel; something you've already established but I think we can emphasize that a bit more.

For starters, void call; Using this ability will physically peel and damage his body for casting it, though how much damage he takes from an individual use of this spell depends upon how strong the unstable energy. Mind warping abilities and similar effects from this spell also can backfire either to the caster himself or a random ally (However the caster may have some resistance to void magic, in comparison to someone who's never experienced the void someone who uses void magic will take less damage and a bit less likely to destroy their own minds; keep in mind this isn't an immunity however. This fits a better idea in his physical frailty as years of exposure to the void has weakened his body in scars and other injuries alongside age itself.)

Planemeld doesn't distinguish between friend and foe, summons only distinguish their summoners and everyone else in the area is just something to kill for them; meaning that they are unable to distinguish friend from foe. The same applies to the unstable energy attacks that leak from the area, however the caster himself is vulnerable to that as well.

Reanimated dead should be changed into a different title like Void Corruption or something, since this feels more like a void creature possessing a mutating a corpse rather then a typical necromancy. With that in mind, The void beast corrupts the corpse into a cross between whatever the corpse was and a void beast itself. To enforce that it can only be used on corpses, casting this on a living target will fail as the victim will natural fight off the attempt of infection. I imagine that the beasts that infect bodies are a unique void beast, and he has a limit of controlling 15 of them. 

Frenzy should be a double edged sword; those that are 'buffed' and do not immediately get rid of it will suffer a constant blinding rage that may cause them to attack allies as well. they also become berserk as they lose the sensation of pain; however while they are affected by this spell their skin will blister and peel from the void exposure.
This spell only applies to mortal creatures or similar beings.

The void creature summons are fine, especially since you describe that they need sacrifices for the stronger summons.

His artifact I propose is a gift from Lancelot that happens to deal with void magic. A summon-able chain that can be casted from the hand, and lashes out and attaches itself to a victim. While someone is wrapped by this chain, they are slowly (and painfully) drained of magic energy in addition to being exposed to void magic. This also results in the typical skin peeling and mind-melting effects, both of which are both slow and painful.
Absorbed energy within the artifact can be used as a substitute for sacrificing in both rituals and summoning.

His role will be a mage. Lancelot doesn't care if his powers will backfire on allies so long as he uses his ability to destroy his enemies.