Clayface

Clayface is a shape-changing supervillain with a monstrous mud-like appearance, and an enemy of Batman.

History
In the early hours of August 27, Clayface fought against Young Justice. By 06:17 EDT, he had defeated the entire team, and was preparing to finish them off, starting with Aqualad. Luckily, Batman arrived on the scene and intervened, quickly attacking Clayface, and using a taser against him; the electricity preventing him from maintaining his form, as he dissolved into a puddle of mud on the ground. Batman later had a stern talk with Aqualad about how poorly the battle had gone for the team.

Powers and Abilities
Clayface can use his abilities to control the density and size of his body mass, allowing him to take a variety of shapes. As a result he is able to fashion his form and limbs into weapons, like spiked anvils, and use them at any time he wants.