Spells affected by Necromage perk?

[Bonkers]

Anyone can tell me which spells are affected in which way by it? (I don't care about the vampirism exploit, only about the intendet effect)

[Latté]

As long as you aren't Undead yourself, none of the spells or abilities you use on yourself will be affected. The only other spells that it affects are those which you can sucessfully cast upon enemy undead.
Generally, magical effects are set to either increase either magnitude or durration, but sometimes both.
In destruction, the magnitude of all damage is increased. In restoration, your aedric magic will be able to repel undead of higher levels. In Alteration, the durration of a paralysis spell should be increased. And in Conjuration, soul trap effects should last a little longer.
I think that in illusion it affects both duration and magnitude, with the magnitude of an illusion spell usually increasing the level the spell can affect, and duration making it last longer. Although you will require the master of the mind perk to use illusion spells on undead.

This is all from memory, but I think it's mostly acurate.

[Bonkers]

Originally posted by Latté:

As long as you aren't Undead yourself, none of the spells or abilities you use on yourself will be affected. The only other spells that it affects are those which you can sucessfully cast upon enemy undead.
Generally, magical effects are set to either increase either magnitude or durration, but sometimes both.
In destruction, the magnitude of all damage is increased. In restoration, your aedric magic will be able to repel undead of higher levels. In Alteration, the durration of a paralysis spell should be increased. And in Conjuration, soul trap effects should last a little longer.
I think that in illusion it affects both duration and magnitude, with the magnitude of an illusion spell usually increasing the level the spell can affect, and duration making it last longer. Although you will require the master of the mind perk to use illusion spells on undead.

This is all from memory, but I think it's mostly acurate.

Thank you for this information. Is Necromantic healing stronger too?

[Latté]

It should be. If it affects undead it should be stronger.

[Bomb Bloke]

It's not just magical effects which are affected - if you're undead, then taking certain other perks after Necromage will enhance their effects on you, too (and they'll stay enhanced even if you revive yourself later).

Likewise, scripted effects may also be modified (including durations etc). Ditto for enchantments from equipped gear. I gather spells other NPCs cast on you are also buffed.

With USKP / USLEEP installed, the perk will not affect the player character in any way (even via regular spells you cast on yourself).

[sim 35th]

Not actually about spells affected by Necromage perk but about some bug that Necromage perk may cause. I've been reading in some guide about that though don't remember what kind of bug it may cause. Something with the Alchemy or Enchanting, don't remember. Have been trying to find that guide again - have no success with that. Does anyone know some info about this, about causing some possible bug by Necromage perk? Cause I want to take this perk but don't want any bugs, cause it's maybe something like cheating already if it gives you some bonuses unfair way. Thank you for your attention.

[Bomb Bloke]

As mentioned, the perk buffs effects it shouldn't. This is unlikely to break your game unless running certain other mods which eg rely on certain scripted effects lasting a certain amount of time. If you have the unofficial patches installed then the perk won't affect you at all (though it'll still buff spells you cast on other targets).