Armos is the first boss you will kill in NMG categories.
It's one of the few boss where there is no RNG involved in the fight. Once you learn how to kill them, it should be the same every time.
The main principle is to try to kill the last two very closely, to avoid the second phase of the fight when the last Armos Knight turns red, which resets its HP.
Each armos takes 3 arrows to be killed, both normal ones and the final red one.
Initially stands still. Gives you time to walk to your starting position.
Does not start untill all armos are in their initial arc position.
Moves clockwise for some seconds.
Contracts and expands once each.
Red armos phase
Get's HP back pretty soon. How to deal with when you have no arrows left bla.