You have to get the perk by either doing multiple bite attacks or the drain health which is easier and unlock the spell than use it as a normal telekinesis spell. it basically holds the enemy in front of you as if you were holding an extremely light dead animal like a fox when it was dead. while doing that the victim is losing health and is subjected to explosive drain health spells and once you let go of the spell button they go flying possibly off of a very high spot. the only downside is that its a tad expensive in the magicka pool but if you are a spell caster then it shouldn't be a problem.
I see. Well then there are three possibilities for a werewof to come out on top. One, he uses ambush tactics utilizing his superior senses, instincts, and lay of the land. Two, he manages to avoid the grip dodging from cover to cover (which isn't likely). And three, the grip is stupid and werewolves hunt in packs. You grip the first werewolf, its mate takes you out while your back is turned.
are you sure a werewolf has superior senses, An ordinary vampire has heightened senses, a vampire lord is practically a super Vampire, and is several times stronger and faster then a normal vampire, take a look at the resembalan, the Vampire Lord is pretty much a giant Bat Demon, and Bats have one of the strongest senses of hearing of any creature in the world, their hearing is so advanced that they see with a somewhat rader, a vampire lord would hear the werewolf from over 10 miles away, also even going near a vampire lord who uses Night Cloak would just be foolish as so many of skyrim's inhabitants tend to do