Whenever Mixels use a Cubit, they sometimes leave behind something called a “Cubit Seed” which is basically just a tiny little fragment of Cubit. When a Mixel comes across a Cubit Seed, they will usually instinctually pick it up and bury it in the ground somewhere, where it eventually grows into a brand new Cubit. What kind of Cubit the Seed becomes mainly depends on 2 factors: Where the Seed was buried and What kind of Mixel buried it. Let’s say for example that during a trip to the Swamplands a Spikel finds a Cubit Seed and decides to bury it in the Swamplands, that resulting combination of Mixel and Habitat would cause that Seed to become a Spikel/Glorp Corp Cubit. Rainbow Cubits are formed when a Cubit Seed is grown in a completely tribe-neutral environment, such as being artificially planted in a place like Mixel Park by a robot without any Direct Mixel contact.