Do you want to compare Katana with Brainiac? Discover the powers, weakness & weapons of Katana and Brainiac from Katana Biography and Brainiac Biography. Find out all about Katana and Brainiac.# Check out how is Katana unique and distinct from Brainiac. Discover their love interest, sidekicks, family tree and the movies and games list in which Katana and Brainiac have appeared. Find out everything about them here!