BookTenTiger
He / Him
I'm definitely not doing this for the mechanical benefit... On the other hand, these are the benefits I have observed:So, as has been noted, this is pretty ineffective in D&D. While it creates narrative in the scene, advantage isn't so great an asset that seeking it every round makes sense.
However, for Fate, what you're describing is a solid tactic - this is because every attack is resisted, and attacks made without some bonus are often ineffective. Having an enemy always seeking to have an Advantage or other Aspect to tag often pays off.
It is a case of matching the tactic to the mechanic.
1) It creates more dynamic combats because enemies are moving more and not repeating the same attacks over and over.
2) It inspires the players to try things other than the same attacks and cantrips, especially when enemies start improvising or interacting with the environment.
3) It's fun for me as a DM, because I'm not just focusing on reducing character HP.