N/any Toxic Death

The Toxic Death uses the Death Magic skill Malign Intervention to reduce healing, then combines damage with degeneration using Toxic Chill and Vile Miasma.

Attributes and Skills

Equipment

Tormentor's or a Scar Pattern is recommended for extra armor or extra energy.
20/20 Insightful Death Staff of Mastery.

Usage

Choose a target and start off by casting Rising Bile then use Malign Intervention, and cover with Parasitic Bond. Once your target has been hexed successfully, use Deathly Chill, Toxic Chill and Vile Miasma immediately. Then switch target, and repeat.
Consume Corpse should be used as often as possible to gain health and energy.
When facing large groups of enemies, Rising Bile works well when placed on an enemy who will survive the whole 20 seconds, as the AoE damage will have most effect then.
This build is more effective if hexes are placed on multiple foes by cycling through enemy list. Use a combination of Malign Intervention, Parasitic Bond, and Toxic Chill.
Deathly Chill and Vile Miasma need to be used as often as possible, but not necessarily on the same target(s).

Variants

Substitute Malign Intervention with Defile Flesh, exchange some life for added reduction in healing
Substitue Verata's Gaze and Animate Bone Horror for Resurrection Signet and Consume Corpse. This can effectively change the build to a minion master. The bone horrors form malign intervention and summon bone horror would double production of minions. This is very good for AB. Healing your minion is not necessary here, since you can produce steal other mm's minions and produce your own.

Spiking Variantion

Due to the popular demand of a spike version of a build revolving Toxic Chill, and after some tests, here it is. This is only one of the possible builds, you're welcome to change it. Thanks to suggestions from Defiant Elements.

Attributes and Skills for Spiking

Usage when Spiking

Focus on one target, start off with Deathly Chill. Then use Rising Bile and cover it with Parasitic Bond. After that, use Toxic Chill, Deathly Chill, Vile Miasma, then Signet of Toxic Shock.
Use Augury of Death right before the enemy reaches 50% health. This way player can hit deathly chill and drop enemy below 50% health and cause a deep wound. Then use Toxic Chill to cover up the deep wound, use Vile Miasma and Signet of Toxic Shock to finish your opponent off.

Counters

General anti spam spells like Backfire and Diversion.
Good condition and hex removal.

Variants

Use Enduring Toxin Instead of Augury of Death.
swap Rising Bile with Malign Intervention.