Coherence failure. How can a person who is not even proficient in athletics autosucceed at athletics? What does this represent? Might alos make rogue who boosted their stength and took expertise in athletics to feel a tad silly.
It's to represent unparalleled physical prowess. I suppose we could make it either Athletics or Acrobatics.
As for the rogue who boosted their Strength and took expertise in Athletics, I imagine he'd feel the same way as a Fighter would without this rule. Why feel bad for one but not the other? Too bad for the rogue. They have other stuff.
DC 30 to be reachable generally requires a very good score and expertise.
I'm sure people generally like rolling dice. I coud be wrong, it was just my impression. Also, forcecage is one of those spells people often complain about. It is unfun autowin spell. Also note that even powerword kill, a ninth level spell, doesn't just bypass HP.
Generally sure. But this doesn't remove all dice rolls. It'd be limited to once per day when it comes online, and then an additional time per day every other level in the upper levels. Limit it by size as I suggested and add that Legendary Resistance can negate the auto-kill and it's right in line with what a lot of spells do. Even if a fighter novas with it, we're talking four kills over four rounds, assuming all attacks hit, at level 19.
I assume most combats of that level have to have multiple foes or else they'd be over super quickly. So the fighter is able to remove a few enemies quickly, at the cost of a resource. Seems pretty reasonable.
That would make it more reasonable, and limit situations it can make unfun. I still don't think it is good design, at least in my games legendary monsters are pretty rare.
Well then maybe you'd be more inclined to use them?
I base my assessment partly on how people tend not to like when spells do this. I would rather nerf these problematic spells than expand this unpopular design to more areas. An it is not just about caster envy why people don't like this. A lot of this game is about combat, and not just about winning a combat. It is about being able to contribute and use tactics. Anticlimactic combat where one character handles the situation is not fun, probably not to player of that one character either, at least not in the long run.
I toss out a few ideas to boost fighters and your response is to nerf casters?
And as I said above, why would the entire battle be over if the fighter takes out a few bad guys?
Is anyone allowed to have fun? Besides just rolling dice, I mean!