No exaggeration, it's at least 20 or so. I don't mind a hybrid type of creature, but giving the character virtually every single power of werewolves and vampires with not one but TWO wolf forms is a staggering amount of power. For me, if each creature [werewolf and vamp] has 10 powers each, rather than take all 20 powers combined pick out maybe 5 from each. Speed and stealth of a vamp but strength and berserker rage of a wolf. That kinda thing. Bram Stoker's Dracula had a ton of powers and is the type of vampire you're basing the vamp side of the powers on, which is fine, its just having every one of them plus more powers is crazy powerful. Moreso than Hulk even. 

[hider= MORE THAN 20 ACTUALLY]

1.) immunity to age
2.) immunity to diseases
3.) immunity to poison
4.) immunity to cold temperatures
5.) immunity to mortal weaknesses 
6.) superhuman strength
7.) superhuman speed
8.) heightened senses
9.) nightvision
10.) moves in complete silence
11.) communicates with animals
12.) can summon animals from a distance
13.) can possess animals
14.) instills rage in animals, werewolves, and vamps
15.) supresses rage in animals, werewolves, and vamps
16.) Vampire shapeshifting: talons and bat wings
17.) Werewolf shapeshifting: wolf and Devil Wolf
18.) Death bite
19.) Heightened instincts [wolf form]
20.) Heightened physicals [Devil Wolf form]
21.) Howling Psychological manipulation [Devil Wolf form]
        * causes blind panic and terror
        * causes mild amnesia
        * can be carried by the beast's howl a considerable distance
[/hider]

[s]The main power problems I have come from the Devil Wolf being able to induce panic and fear. Those kinda things would happen enough naturally but I don't think it needs to be a power all its own.[/s] <<< If its applied with his howl it reminds me of a move in DCU Online, which doesn't make it sounds as bad. Using a vampire's hypnosis would be something maybe in his regular form as a possible alternate...

Another thing was the weaknesses. Something has to be able to kill him. Dracula is the alpha vamp and can be killed. Werewolves can be killed. So why should being a hybrid be any different when he's already got more powers than Dracula? If they're enemies, then Fenrir should've taken Dracula and Co. down in one or two battles if he can't be killed. Especially if the feud has lasted decades. I can see now how the guy will basically be like a superpowered hunter on Supernatural, but one who frequently leaves a bit of collateral damage. He'd likely be under watch by STRIKE but still be at odds with those who view him more as a threat. 

~KL~