Rensy
Colony
This suggestion is for the end of early access, basically when you defeat challenge 5 you unlock bullet ants but after that, you will be granted with a selection screen to select a special ant in your formicarium, basically the ants that weren't normally playable and did not appear as an unlockable ant in your tech tree, including: Slave makers, trap jaws, army ant major (because army ant media is too weak to be a selectable unit here), big headed ant, little black ant, other 4th tier unplayable ants, all 5th tier unplayable ants, You can select one of them for FREE to be in your formicarium, and you can change your special ant to another special ant however this will cost 1000 royal jelly so unless you're the millionare of the undergrowth you gotta stick to what you have. I think this should be a good suggestion.