Usually, but then you take a closer look and thats a magic item or some frankenstein stack of spells or both. So my encounters feature creatures with anti-magic fields and silences. Unless you allow some homebrew monstrosity (or a wizard if you're playing 3.5) you should be able to design encounters that manage a challenge. Its my world, Mr Anderson.
Mmm, psionics, Shadow Weave Magic, Initiate of Mystra.
A min-maxed character is one with dumpstates and weaknesses. A powergamed character is one with fewer weaknesses than a 'normal' character. Anything that can challange an OP build will wipe the floor with a party of 'standard' characters.
It's pretty difficult to build a 5e powergamed character without homebrew or playtest content. I've genuinely never seen a build I'd consider so wildly out of whack from the rest of the party, even concepts people have made, and even then, they require specific magic items.
I'd just give character targeted magic items to the weaker players to bring them to the powergamers par, while rewardinng them with socially interesting magic items then sharpen the teeth to my monsters a little.
True, but what encounter are you designing? If I'm allowing a powergamed character in there I plan for it. Intelligent and powerful creatures target them with just as many tricks up their sleeves. These powerful beings aren't alone, and their posse attacks the rest of the party. In my opinion, it is very doable. Though it might get boring always having a Kaiju fight while the rest of the party is doing normal party stuff. The games I have allowed powergaming, the powergamer has always been the first one bored with the campaign.
.... no. This is a very bad take. This type of behavior is what you get from toxic DMs. There are a thousand ways to deal with this situation that are more nuanced and diplomatic than wielding the DMG (or equivalent) like a mace. Or equivalent.
I mean, it's a bad solution, but it's not exactly a bad take in response to the post. It's very true that a DM can easily match what ever OP thing the player wants to pull, so a pompous little shit trying to ruin the game getting a slap is very much not out of line.
Just because there are far better solutions doesn't make the entire take bad.
Idk the "Shadow Link" solution is pretty great all around. There is nothing more fair than matching someone at their own game and challenging them to think creatively to best it.