+1 to the OP. Yet another instance of Larian cheese, and the inevitable ridiculous arguments of "if you don't like it don't use it." As if the enemy also doesn't use it if I don't use it. And as if the encounter having been balanced for the use of such silly and unrealistic actions will magically change to a different balance if I decide against using the larian cheese.
I actually like that feature, can be quite useful sometimes
Useful/convenient and appropriate are two very different things.
An invulnerability toggle can be incredibly useful. Does it make for a good game mechanic? Hardly.
Yeah I would love it if, like in the cartoons, when an enemy is chasing me, out of nowhere a huge block of iron will fall out of the sky right on top of my enemy. YEAH!!!! What an awesome useful feature!! That's what Larian should introduce into BG3 next: Call Anvil. You can use it as often as you want, whenever and wherever you want.
