Traits

As a general concept, "Hivemind" generally means more than one character who acts or looks completely or nearly identical. So, let's say 2 characters may be twins and talk in sync, act in sync, or finish each other's sentences. Cavemind means you can have up to 3 total Cloakat who are "hivemind" in quality, however, this trait costs extra if a custom/MYO slot is purchased. The designs have to be identical/similar, however, you're welcome to change the palettes, hairstyle, and accessories of each Cloakat so long as you can tell they're practically the same character or that they're twins/triplets. 

This trait cannot be stacked.

Cavemind costs extra when requesting a custom.
Cavemind needs 1 potion per extra character, so you would need 2 for 2 total extra characters when purchasing from the shop.