Diablo 2 Walkthrough -> Necromancer Skill Chart
Curses
Amplify Damage (= 1 =)
Reduces enemy resistance, allowing you to inflict more damage.
Dim Vision /Nearsightedness/ (= 6 =)
Reduces the distance from which monsters can spot you. Does not affect other players.
Weaken /Weakness/ (= 6 =)
Monsters will deal reduced damage.
Iron Maiden /Iron Maiden/ (= 12 =) [Amplify Damage]
The monster receives damage greater than its own (depending on the spell level).
Terror /Terror/ (= 12 =) [Weaken]
The cursed monsters run away in fear.
Confuse /Confusion/ (= 18 =) [Dim Vision]
Monsters will begin to attack everyone indiscriminately, including each other.
Life Tap /Life Drain/ (= 18 =) [Amplify Damage, Iron Maiden]
When attacking the cursed, you take back half of the life taken.
Attract /Attraction/ (= 24 =) [Dim Vision, Confuse]
Forces enemies to attack the targeted monster. Does not affect unique monsters or other players.
Decrepify /Weakness/ (= 24 =) [Weaken, Terror]
Reduces the victim's speed.
Lower Resist (= 30 =) [Weaken, Amplify Damage, Terror, Iron Maiden, Life Tap, Decrepify]
Removes resistance to all attacks. Now you can properly taunt your victim.
Challenge and Control
Raise Sceleton /Raise Skeleton/ (= 1 =)
Turns a killed enemy into a skeleton.
Sceleton Mastery /Skeleton Mastery/ (= 1 =) [Raise Sceleton]
Improves the characteristics of skeletons, skeleton mages and resurrected ones.
Clay Golem (= 6 =)
Summons a clay golem. There was a similar spell in the first game.
Golem Mastery /Golem Mastery/ (= 12 =) [Clay Golem]
Increases the speed and life of golems.
Sceletal Mage /Skeleton - Mage/ (= 12 =) [Raise Sceleton]
Transforms an enemy's corpse into a skeleton mage.
Blood Golem /Blood Golem/ (= 18 =) [Clay Golem]
Its health is directly linked to the Necromancer's. When attacking, the golem takes enemy health and transfers it to the Necromancer, but when taking damage, the Necromancer also takes damage.
Summon Resist /Resistance of Summoned/ (= 24 =) [Clay Golem, Golem Mastery]
Increases the resistance of your guards.
Iron Golem /Iron Golem/ (= 24 =) [Clay Golem, Blood Golem]
To summon it, you need to sacrifice a metal item. The golem's stats directly depend on the quality of this item.
Fire Golem /Fire Golem/ (= 30 =) [Clay Golem, Blood Golem, Iron Golem]
Deals fire damage. Heals itself by absorbing some of the fire damage dealt to it.
Revive /Resurrection/ (= 30 =) [Raise Skeleton, Clay Golem, Raise Skeletal Mage, Blood Golem, Iron Golem]
Fully revives a dead monster, which will now fight by your side. Duration: 3 minutes.
Poison and Bone
Teeth /Teeth/ (= 1 =)
A bunch of bone fragments will fly at your enemy.
Bone Armor /Bone Armor/ (= 1 =)
A handful of ghost skeletons will circle around the Necromancer and absorb all damage.
Poison Dagger /Poisonous Dagger/ (= 6 =)
Gives the dagger poison damage.
Corpse Explosion /Corpse Explosion/ (= 6 =) [Teeth]
Explodes the target corpse, the remains of which damage nearby monsters.
Bone Wall /Bone Wall/ (= 12 =) [Bone Armor]
The necromancer can erect a bone wall between himself and his enemies. However, the wall's durability is limited.
Poison Explosion (= 18 =) [Teeth, Corpse Explosion, Poison Dagger]
Works like an aerosol can. Only instead of deodorant, it sprays poison.
Bone Spear /Bone Spear/ (= 18 =) [Teeth, Corpse Explosion]
A bone spear that deals magic damage.
Bone Prison /Bone Prison/ (= 24 =) [Teeth, Bone Armor, Corpse Explosion, Bone Wall, Bone Spear]
Spikes will begin to grow from the ground and surround the selected monster.
Posion Nova /Poison Flash/ (= 30 =) [Poison Dagger, Teeth, Corpse Explosion, Poison Explosion]
Reminds me of the Nova spell from the first game. (Nova is absolutely not new :))
Bone Spirit /Bone Spirit/ (= 30 =) [Teeth, Corpse Explosion, Bone Spear]
Basically, this spell is also taken from the first part. The spirit pursues the target victim and deals damage. You can sic multiple spirits.
Source: gamez.biysk.ru.
See also:
Leveling up the Necromancer's skills
Varvara Leveling Guide
Assassin Skills in Diablo 2