3.5 was edition I played the most. It was a reason why I quit RPGs for nearly a decade because I hated it so much.
Every time I see another meme about how amazing 3.5 Tarrasque is, I remmember how amogn actual 3.5 players Tarrasque was the biggest joke. It was always brought up as definite proof designers have no idea how to make good monster. It was laughably easy to beat. A wizard could casually solo it, the same abilities people now miss in 3.5 amounted to ribbons. It was a laughingstock, forums had 100+ pages discussions how to fix it and general consensus was it';s beyond saving. It was first proof in 3.5 if you cannot use magic you're only good to roll over and die.
I honestly don't know if everyone claiming 3.5 Tarrasque is such a horrifying monster are trying to rewrite history or unintentionally proving what a broken, unplayable pile of garbage 3.5 was, if it's biggest punching bag is actually dangerous in a different, better designed game.
I remember the go to strategy being to summon an Alip, an incorporeal undead that can drain strength without needing a save.
And in 3.5 STR 0 meant your body no longer had the strength to have your heart beat so you'd die with no save.
I think that's still the case in 5e, there are just way less monsters with ability-draining attacks (shadows are the one most players have encountered, they can still be pretty deadly!)
Yeah but the problem is that there isn't a list of what happens for each score, so people aren't quite sure if it's a monster specific condition. It does seem to match up with the old rules though, so I'd just default to that. STR and CON are instant death, DEX is total paralysis, the mentals are comas/nonresponsive.
I thought they were all instant death, though I can't remember if I read it somewhere or just assumed it. Makes sense though:
I have WIS and CHA as “Go Completely Unresponsive” and “Personality Death” respectively.