MagBlades and Vampirism have very good synergy:

- Concealed Weapon increases stealth speed where the Dark Stalker passive allows quicker stealth and stealth movement
- A Vampire's Devouring Swarm ultimate works very well along with a NB's Siphoning Skills
- Extra Magicka Regen from having a Vampire skill slotted is pretty nice too

But you do have additional downsides, especially these days now that Vampires need an urgent buff. Fire attacks and Dawnbreaker will quickly take you down

Hauztein wrote: »

does it worth? at theory seems very nice...

Undeath seems very good for mitigation if i am a solo player and like survival.
the regen also is good. Dark Stalker helps.

Do i have to slot vampire skill to have Undeath? The tooltip says nothing about it.

Do i have too much trouble in arena? (taking into accounting the heavy selfhealing from magNB)

I'm actually using a magicka nightblade with vampirism in PvE right now... Literally. Responding with my phone while I play.

It works great in PvE. All the self healing combined with the undeath passive makes for a tough customer.

I don't remember the last time I died, tbh.