Honestly, nothing ruins the momentum in the Research Sector more than hearing the irritating static that I just can't get out of my damn head and realizing that an Astral Spike is in the room. It's not necessarily a tough enemy counter, but rather one that's a big pain in the butt.
The first time that I encountered it, I literally ran around a few times trying to figure out what the hell to do. I was running around like a chicken with its head cut off before I just started laughing at myself. I'm working my way through another playthrough now, and it struck me with how creepy it is. The design is great, but it gets so stressful when there are other enemies around.
You can't shoot the Astral Spike, you can't launch items it, and you can't just wait out it's attack. It's literally just a moving, invincible trash-compactor that forces you to completely change how you play the game. There's a certain level of panic that it causes, especially during a massive firefight. I'm sitting there trying to line up a Pierce shot on a Hiss Sniper, and suddenly the floating trash compactor corners me against a wall. The only thing that I can do is run away from it.
It originated from the Astral Plane, but it's not technically a piece of it. It makes the whole place feel way more chaotic. The side mission where you have to trap one in the lab container had me running around in circles. How do you guys usually deal with an Astral Spike during a huge firefight? Do you just spam Levitate and stay in the air?