Ultimate Brainstorm
Ultimate BrainstormCaT
General Information
Species: Evolved Cerebrocrustacean
Home World: N/A
DNA Source: Brainstorm
Body: Very Large Crab
Powers and Abilities
Abilities: Electricity Manipulation
Weather Manipulation
Understanding All the Jokes in Rick and Morty
Classification: Fauna
First Appearance: TBA
Ultimate Brainstorm is the evolved form of Brainstorm.

This version of Ultimate Brainstorm was created by CaT and is free for anyone to use.


Ultimate Brainstorm's carapace no longer opens, instead growing a natural vent that allows him to discharge electricity without exposing his brain.

His ability to generate and control electricity far exceeds his unevolved form's, with him gaining the ability to manipulate the electrons in the air to change the weather. This allows him to bring a literal storm down on his enemies, along with whatever other weather phenomena may be convenient for him at the time.

His intelligence is heightened as well, placing him near the same level of intellect as an evolved Galvan.


If his vent is entirely blocked with an electricity-resistant substance, Ultimate Brainstorm will be unable to discharge electricity until the vent is cleared.


Ultimate Brainstorm's evolution simulation is run primarily to counteract his natural predator, the Vicetopus. His evolved form is a massive tank of a creature, matching his unevolved form's natural predator in height. His shell has become hardened to a ludicrous degree, making a Vicetopus' attempts to grab him likely to end in it impaling itself on one of his multiple spikes. If all of these natural defenses somehow fail, Ultimate Brainstorm's even further enhanced intelligence is more than enough to get him out of just about any situation.


If Ultimate Brainstorm appears in your series, please note his appearances here:


  • Ultimate Brainstorm's design is largely based on the Japanese snow crab, with his pale color resembling the shells of most crabs directly after molting when they grow.
    • It's worth noting that Ultimate Brainstorm's shell guarding against the Vicetopus mirrors the real Japanese spider crab's exoskeleton protecting it from octopus.

The CaT Collection
Community content is available under CC-BY-SA unless otherwise noted.