Shadow Bloon (Zathus' Conception)

Sadly enough, there is already a Shadow Bloon. But don't worry, there is one for my conception of BTD6. The version in Bloon to Fist: Chapter 5- Argania, are the ones on this page, not the other page. They take the appearance of dark purple bloons with crossed swords on them. They go invisible for 4 seconds every 5 seconds, take 5 hits to pop the Shadow Bloon layer, and split into 5 Black Bloons. There appear on Round 68.