D2R Poison Nova Build for Necromancer

• Skeleton Mastery [17], Golem Mastery [20], Summon Resist [20]
• Clay Golem [17], Blood Golem [17], Iron Golem [17]
• Raise Skeleton [17], Raise Skeletal Mage [17], Revive [17]

• Poison Dagger [46], Poison Explosion [46], Poison Nova [46]
• Teeth [27], Corpse Explosion [46]
• Bone Armor [27], Bone Wall [35]

• Amplify Damage [19], Iron Maiden [19], Life Tap [19], Lower Resist [19]
• Weaken [19], Terror [19], Decrepify [19]

Required Level: 30
Prerequisites: Poison Dagger (1), Teeth (1) Corpse Explosion (6), Poison Explosion (18)

This spell befouls the atmosphere surrounding the caster. With an arcane chant, the Necromancer corrupts the very air we breathe and causes it to erupt in all directions. It is from years of investigation and preparation that the Necromancer can choose a poisonous gas that is toxic to the minions of evil, yet harmless to himself and his companions.

Effect: A ring of poison explodes from the Necromancer.

• Poison Nova does not overwrite itself, and its duration is always 2 seconds. Therefore you get almost no benefit from casting Poison Nova more often than once every 2 seconds (because each subsequent casting doesn't increase the duration on monsters that have already been affected). Even so, it is still a very cool skill.
• Poison Nova works well with the Lower Resist curse. You can quickly clear an area of weak monsters by casting Lower Resist and then promptly following it up with Poison Nova.