In White Dwarf Magazine.

In Warhammer Chronicles 2004 / Warhammer Chronicles Website.

A Hydra has one breath attack, so choose which head breathes fire.

For the combined save, so the save is limited to 1+ and will not improve any further.

No, as they are classified as war machines, they do not suffer a -1 penalty.

Any doubles rolled will be cast with Irresistible Force and then the Miscast occurs, as described for normal Irresistible Force in the rules for the Ring of Hotek.

Yes, Killing Blow is a special rule for the troops, and is not tied to thier Draich. Note that Executioners do have hand weapons as all models are considered to be carrying a hand weapon in addition to their other weapons (unless specifically noted otherwise) as stated in Warhammer Chronicles 2004.

Yes.

No.

Two. Harpies have vicious claws which count as two hand weapons.

Yes. A mundane missile weapon option is not necessary in order to take a magical missile weapon.

Yes. any attack from a magic weapon counts as magical... same as any attack from a runed Dwarf war machine does.

In the Warhammer Annual 2002.

In Warhammer Chronicles 2003.

You only lose one Wound.

Hand of Khaine reduces a model's Attacks characteristic by -1. If the model attacks some other way, as Giants or Fanatics do, it has no effect.

Poisoned hits (ie, 6s rolled to hit) have no chance of causing a Killing Blow as no roll to wound is made.

Yes.

In Warhammer Chronicles 2003.

No.

One.

City Garrison Armies benefit from characteristic changes (e.g. better Ld on Cold One Knights) and similar items but do NOT benefit from the reduced Army List costs or changes such as 2 for 1 Cold One chariots. In summary, Dark Elves Bestiary (i.e. The Dark Host) changes get applied, but not Army List changes.

In White Dwarf Magazine and on the Games Workshop UK website.

Yes.

In Warhammer Chronicles 2003.

In Warhammer Chronicles 2004.

Yes, he can appear inside a fleeing unit. As he counts as charging, the unit will automatically flee towards the closest table edge.

No.

No. Units of Daemons do not take Break tests.

The Anointed may use Chaos Armour, magic Armour, and magic shields and cast spells, but cannot cast any spells if he has any other mundane armour (including shields).

No. Mounted Daemonettes do not benefit from the Daemonic Legion bonuses. Mounted Daemonettes in the Cult of Slaanesh army have a Leadership of 8 and a 5+ Daemonic Aura rather than a true Ward Save.

Yes. This is because a unit that becomes Stupid effectively becomes Immune to Psychology, and the standard states that units that are Immune to Psychology can still use it.

No.

No. The +1 was printed as a reminder that Dark Elf magic users receive a +1 to cast spells. They do not get +2 if they are given the Mark of Slaanesh.

No. Dogs of War / Regiments of Renown are not listed as an option in the army list. The only exception is the Regiment of Renown - Mengil's Manflayers as the rules for the unit specify that they may be hired by a Cult of Slaanesh army.

Yes. Both are allowed to take Hordes of Chaos magic items tagged as "Models with Mark of Slaanesh Only" per the army list. The Chaos Daemon Sword is tagged as "Models with a Mark of Chaos Only" as the item's effects change based on the patron god. The item meets the "Models with a Mark of Slaanesh Only" intent as in this case, the sword grants the bearer the same WS, S, I, and A of a Keeper of Secrets (Slaanesh Greater Daemon).

Yes. The name of the army alone gives us the answer, as the army is clearly affiliated with Chaos. Upon the sight of daemons and/or the symbols of Chaos, the Warrior Priests will whip their units into a righteous fury. Warrior Priests of Sigmar and the unit they are with hate all models in a Cult of Slaanesh army.

Yes. As all Cult of Slaanesh armies are led by a Dark Elf and include Dark Elf units, High Elves are immune to panic when fighting against a Cult of Slaanesh army. The blood fued between the Asur and the Druchii is rooted in the original founding of the Cult of Slaanesh by Morathi and finding chaos followers of Slaanesh accompanying a Dark Elf army would neither surprise or weaken the resolve of the Asur.