[Snake]

Slightly-off-note snippet:

This actually sounds like a small but nifty 'punish' against GS. Taking advantage of an incoming enemy's magnetism by subtly pulling them in a little more than they wanted, straight into a rock? It's clever, works against a build that layers two 'no damage lol' defenses and doesn't have to break GS in the process.

That, and I honestly don't see anyone sporting an earth weakness (much less one at 25% or higher) in this kind of situation. It would be a stupidly specific build, at best.

The lack of magnetism in the trigger sounds like a bug, though.

Not the place for an answer as this is more a Balance-fu thing, but:

Why should you be punished for countering an enemy that doesn't target you with let's say, Sidecut and Crystal Rose spamming? You're just guessing the GS (Drei)'s condition right as they're not targeting you, all a part of the mind games.

Then, why should this make Boxer/Cobra an obsolete setup (where I'm investing in CEL instead of tankyness), compared to Boxer/Hexer (Where the enemy is investing in DEF/RES, aka being a tank in this tank meta)?

And to add a final remark of why this is a bug:
Geist Schritt's other two dashes don't behave like this, just saying. They run at the enemy and it doesn't trigger Astral Belt's damage at all, as they work as intended. They 'dash' towards the enemy, not get 'pulled' towards the enemy.