Felhound



Felhounds, or fel hounds, are demonic hounds that feed on magic; they can sense the presence of nearby magic and hunt spellcasters unerringly. This red-skinned creature looks vaguely like a hound — though one with a massive, toothy head that makes up nearly a third of its length. Great horns jut out above its solid white eyes. Their powerful jaws are huge and filled with slender teeth. Their eyes are weak; to get around, felhounds rely on their ability to sense magic. This sense is also how they track their prey. Felhounds are pit lords' personal hunting hounds, starved for both blood and arcane energy. Pit lords grow felhounds somewhere in the Twisting Nether. Felhounds do not speak, though they understand Eredun. Felhounds treat spellcasters, particularly arcane spellcasters, as layered desserts with meat on the outside and magic on the inside. Less magical characters are worth notice only if they have damaged a felhound.

Other types

 * Fel stalker
 * Adamantine stalker
 * Felhunter
 * Fel ravager

Warcraft III
The Felhounds, which first appeared in Warcraft III: Reign of Chaos, are demon hounds used by the pit lords to sniff out sources of magic wherever they can be found. Felhounds, who feed upon magic itself, are fond of draining the energies of hapless wizards and then ripping their bodies to shreds. . They were as fast as Knights, as resistant as an un-upgraded Grunt, and possessed the Mana Burn ability, which deducted a target enemy's current mana pool by a maximum of 100, dealing damage equal to the amount of mana burned. They also had a Chaos type attack, making them more effective against buildings than regular units.

"The Legion has sent Hellhounds to aid us! The beasts are yours to command, Death Knight. — Kel'Thuzad during the summoning of Archimonde"
 * Appearances

In the undead campaign, Path of the Damned, upon the summoning of Archimonde the Defiler, the Burning Legion sent seven of these beasts to assist the death knight Arthas Menethil in defending the lich Kel'Thuzad from the Kirin Tor, the Mages' Guild, and the Sorcerer's League. Since the felhounds possessed the Mana Burn ability, they were highly effective against enemy spellcaster units, such as Priest, sorceresses, and even archmage heroes.

They made their second appearance in the interlude "The Wreckage of Lordaeron", in the orc campaign, The Invasion of Kalimdor. While larger demons, such as infernals and doomguards destroyed buildings, the felhounds would go after the human villagers and kill them. In the same campaign, they were seen again during the last mission, "By Demons Be Driven", alongside doomguards guarding Grom Hellscream's chambers. Thrall would need to kill these demons in order to gain access and utilize the Soul Gem on Grom as part of Jaina Proudmoore's plan to free him from the Legion's influence.

Finally, this demonic unit appeared several times during Eternity's End, the night elf campaign and last of the five on Reign of Chaos. Its presence was most notable in "A Destiny of Flame and Sorrow", in which they not only made up a few of the attack waves on Illidan's base but also protected Tichondrius, and most notably the final mission, "Twilight of the Gods" — many of the attack waves launched against the stalwart World Tree defenders (humans, orcs and night elves) would frequently be composed by felhounds.

Inspiration

 * Felhounds look very much a Peace Hound from the comic series Elfquest.
 * They also look strikingly similar to the zergling from Starcraft.