Thunder

Thunder is a member of the Skrills of Ren. His brother is Lightning and is the smarter of the two.

Physical Appearance
Thunder is a black Skrill with orange spines, wings and horns.

In game, he has the same design and wears a master's saddle.

Foundation
Two Skrill eggs were stolen from the same nest by the Flightmare Slayer. They were to be raised to fight in the Flightmare War. The brothers hatched and became members of the Skrills of Ren, led by Kylo Ren with Bolt as his apprentice. Thunder was proven to be the smarter of the two, showing more intelligence than his brother, Lightning.

Poacher War
Thunder and his bother flew into Ren's storm and witnessed Anikin's transformation.

Flightmare War
The Skrills of Ren fled to the Realm after Star sedated GirlZilla. They remained there until the war was over.

Bendy's Rise
Thunder, Lightning and Spark started to worry about Ren, who was acting odd. When Ren snapped and revolted with Bolt on his side, Thunder retrieved GirlZilla and Snowflake to stop him.

Lightning Bolt
Thunder can shoot lightning bolt's from his mouth. His shot limit is 4.

Electric Jacket
Thunder can generate an electrical coat around himelf, shocking foes who touch him. It can also be released as a shockwave.

Lightning Travel
Thunder can travel through lightning bolts if there's a storm around.

Weaknesses
Thunder can't be placed in water. If he is, he can't use his electric powers.

Lightning
Lightning is Thunder's brother. Thunder sees him as unintelligent.

Triva

 * Thunder is sometimes confused for Lightning, and vice versa.
 * Thunder is based off The Brain from Pinky and the Brain.