The Grazlax (plural Grazlaa) serves as the antagonist(s) of the Wizards vs Aliens episode Grazlax Attacks.
Beginning its debut as a single specimen from the planet Grazlaxicon III in the Korbol Galaxy (the same Galaxy Nekron, home planet of the Nekross is), it later multiplied and duplicated into an army of clones of itself. It has notoriety of eating though everything on every planet it has been to, having been able to chew through wood, metal and stone and is also a brilliant tracker and once it picks up its/their target's scent, nothing can stop it (or them).
If a Grazlax get's too hot, it multiplies into three more Grazlaa (it only takes around 50-60 Celsius for this to happen). The Grazlax's weakness is loud noises which cause them to explode into orange goo.
In the episode, a female Nekross named Lexi sends a Grazlax to attack the Nekross's wizard enemy Tom Clarke when he was visiting his friend Benny Sherwood. During the attack, the duo blast the Grazlax with a hairdryer causing it to multiply into three Grazlaa. Eventually after even more Grazlaa multiply, the two learned that the Grazlax's weakness was loud noises and so Tom used Benny's violin to fight back, causing the many Grazlaa to explode in orange goo.
Grazlaa are small creatures with blue fur, red eyes, fangs and horns on their heads.