Sludge Blob

Sludge Blob is an alien that first appears in John Smith 10: Phantom Watch.

Appearance
Sludge Blob is a purple blob made of sludge. He has small green eyes, and has the Omnitrix symbol on his chest.

Powers and Abilities
Sludge Blob has the ability to shapeshift, and to look like anyone that he wants. This makes him different than other shapeshifting aliens, as he can disguise himself as whatever he wants. His other powers are stretching and regenerating powers, like Lucy.

Weaknesses
He can be killed by being thrown into water, by extreme heat, or by being frozen and shattered. He is weak to lightning.

John Smith 10: Phantom Watch

 * New Chess Pieces (episode) (first appearance) (in sludge form and as Ahsoka)
 * The Sixth Round
 * Fifth Battles (Drone by Phantom) (In sludge form and as Rob Lucci)
 * Unlimited Power (John Smith 10)
 * The Final Battle Part 1 (John Smith 10) (used by Vilgax) (accidental transformation; selected alien was Feedback)

Trivia
Dioga Beta 
 * His name is a pun off of Spongebob.