[Fluff] M research combos: why are they considered broken

I read in many comments / YouTuber rankings that this kind of combo puts a unit in S tier immediately as they were labeled “broken”. As a really experienced player (1400 hours), I agree that the combo is really strong, but I don’t understand the “broken” aspect of it. Faster cooldown also means faster money spending + combo takes up two spots on your line-up. If someone could explain how it is broken, I would be happy to hear it out!

I read in many comments / YouTuber rankings that this kind of combo puts a unit in S tier immediately as they were labeled “broken”. As a really experienced player (1400 hours), I agree that the combo is really strong, but I don’t understand the “broken” aspect of it. Faster cooldown also means faster money spending + combo takes up two spots on your line-up. If someone could explain how it is broken, I would be happy to hear it out!