Flamers

Of all the common Daemons spawned from the Realm of Chaos, Flamers, also known as Burning Horrors, and Fire Daemons of Tzeentch are amongst the strangest. Like Discs, they are beings of pure magic, only given form when cast out of their plane into the mortal world. When they appear, they are disturbing to say the least. They have tubular bodies melded with gnashing faces or grimacing maws that end in a pinkish, fleshy skirt that they use to propel themselves along the ground. Their arms are blue trunks that each end in dripping orifices capable of spraying liquid flame.

Though the expressions on their sinister faces might suggest otherwise, Flamers are mindless creatures, driven by instinct and instruction from the Lords of Change. They are found only rarely in the mortal world and then only at times when Tzeentch despatches them to aid the great hordes that wage war against the soft men of the south.

When the Flamer spews its fires, small droplets fall to the ground and ignite. After a moment, the flames take on the characteristics of a nearby person or object, portraying the events unfolding around it, often in a deeply disturbing or mocking manner. They only sputter out when the Flamer moves on.

Source

 * Warhammer Fantasy RPG 2nd ED -- Tome of Corruption (pg. 231).