Mongul

Biography:
Mongol is a yellow alien who wields a giant hammer against the Bat People in Batman Shadow Knight. He is noted to have created the Ro-Bo-Man-Bat suit before being heroically murdered by the Bat People in Man vs Bat.

Personality:
Mysterious & evil

Powers/Abilities:

 * Owns a "Giant futurising looking space hammer"
 * Made the Ro-Bo-Man-Bat suit
 * Getting killed faster than any other Batman Shadow Knight Villain

Trivia:

 * In recent polls, 99.9% of Lovingtoomuchiowa readers forgot this character existed in this series, some would say this adds to the character's mystique.