Fire-drakes

"The Fire-drake has been released"

- A goblin/orc telling the fire drakes are out

Fire Drakes are a kind of Dragon that are very large and who can stand fire, but can kill anything with their breath. Fire-drakes are very large, bigger than Cold-drakes. The Fire-drake broods often live in hills, mountains, caves or icy wastelands.

First Age
Glaurung and Ancalagon were Fire Drakes, and were among the most famous of the breed. Glaurung was a key player in the sacking of Nargothrond and in the fulfillment of Morgoth's curse on the children of Hurin. He was a fearsome bane to the Elves. Ancalagon and his armada of winged fire-drakes themselves drove back the Host of the Valar during the War of Wrath at the end of the First Age such was their incredible power. Had they been unleashed against the remaining Elves and free Men, Morgoth would have achieved dominion over Middle-earth. Fire-draked also joined the Balrogs in the attack on Gondolin.

Second and Third Ages
All Fire-drakes were thought to be killed before the Second Age; however, Smaug was among the last who took the Lonely Mountain (Erebor), the realm of Thrór, who at the time was King under the Mountain and was the grandfather of Thorin II Oakenshield. Bard the Bowman slew Smaug before the Battle of the Five Armies.

Video games
The The Lord of the Rings: The Battle for Middle-earth II video game describes another powerful Fire-drake, Drogoth. A contingent of Goblins and Ringwraiths were sent to bring him over to Sauron's side, but the Dwarves of Erebor and the Men of Dale were able to kill him. However, this is non-canon.

The Fire-drake is a Drake that destroys the enemies in The Lord of the Rings: The Battle for Middle-earth II. This drake is no dragon but it has large horns, sharp fangs, frightening eyes large legs/arms, spiny back & long tail but no wings at all. They all breath huge flames and are used with the Goblins with a Dragon's nest, a upgrade for the goblin's base or sometimes summoned by Gorkil the Goblin King as his final power.

Fire drake broods
Fire drake broods are like the Fire drake except there small. They are in groups (Fire drake groups) which three are there to attack much powerful but can get two which will turns into six fire drake broods together. They have every thing like the Fire drake has including huge flames. These are in Rise of the witch-king at a lvl.3 goblin fissure to build.

The Fire drakes appear in Battle for Middle-earth II while the Fire drake broods only appear in The Lord of the Rings: The Battle for Middle-earth II: The Rise of the Witch-king.