Has villain 3bet prior? Has he appeared at least aware of how to play the game prior, like opening light ip, cbetting, floating, etc. In position 3bets in lp can be exactly what they say they are sometimes. I think I probably fold this to his 3bet, but I'm not sure why exactly. care to elaborate why you call? do you have a plan past that or is it more focused on “it cost me x and i have ATo” there's no shame if that's what your plan was, i'm just curious. this is how we get better.

As played, I fold turn because of the following-

– while you've shown multiple streets of passivity/weakness, villain should have a stronger range here in the first place because of his 3b, unless he 3bets light, and what does that mean really anyway? if he's 3betting weaker aces, or suited connectors, or small pairs/middle pairs, you gotta figure out what he has here the most often based on what you''ve been given. his turn overbet seems to say he can't be THAT good, but we shouldnt discount his prior play because of that. he may think he's getting max value when you have a J when he has a straight but he's also protecting against draws. No matter what, 2xing the pot is confusing lol. his weak aces are freerolling some part of the time and youre chopping against them. his merged Jx hands may think you have an ace and he really wants to get max value and confuse you. hands like QJ/J9s. you have two blockers to those hand types so that removes available combos (two T's are gone so he's far less likely to have JTs T9s

– you beat no part of his value range anymore, and are chopping to the parts that you were beating. on top of that, he's freerolling around 1/4 the time that youre chopping and youre at the mercy of his bet size on the riv.

– you likely can raise and cbet against other players at the table

– you're getting the point in the tournament (or just past it not sure) where reg is about to close, so the dude's coming in with 5-15bb are now going to be playing the simplest form of tournament poker and a lot of them don't do it correctly. youll want to have a bigger stack to withstand the swings of the multiple 60/40s youll surely find yourself in very soon. as one busts, youll have him replaced almost definitely with another because there are going to be a large portion of the remaining players hovering under 20bb. i'm not sure if this is reason enough to avoid big pot spots, but it certainly is a push to avoid them a positive-nonzero amount of times over infinity.

hope this helps!

I wanted to add that after thinking about it for a while, I think hands like KT or QT  maybe play like this if they have the club as well. They have a pair, youve shown weakness, they don't know what you have specifically because lots of people raise/flat 3bets and lots more do it too much. If he has like QQ/KK with the club I feel like he should be checking back flop and turn, but he may feel he can get you off your Aces and he has the club to flush up anyway and he has discounted that you don't have a Jack after checking twice.

well when you say he's polarized on that board, is he? unless he 2x's with his underpairs that completely whiffed, i can't think of a range of hands youre doing well against with the runout. like yah he can “have it or not have it” but what is “it” in this instance. there are lots of types of hands that can vbet there. Jx,  Ax, KQ, flush, boat..the hands that are “bluffs” arnt really bluffs in that he has the nuts or not, it's likely merged range and not polarized right? he can have many hands here. broadway hands are doing very well on this board. i agree that light 3betting means ATo can be ahead, but when you know he's cbetting, you need to be calling the flop and youre not even completely sure youre ahead because he'd also 3b bigger hands that AT. when you hit, i understand checking to pick off bluffs, and i also understand his overbet likely means he doesn't know what to do with his hand, but i think his hand still ends up better than yours most of the time and he's made it easier for you by overbetting. i'd love to hear what other people have to say.

yah see what i was talking about though? he 3b bluffed but did it with a hand that plays absolutely horribly when called. then when he flopped gold he didn't know how to proceed. he only made money then after you made a mistake by calling the turn. but see how he made a mistake and then made another mistake that would prevent him from making anything? it becomes him putting in money when bad, and then not making any money when he outboards you, which is overall bad because it's obviously negative ev to see J5 and put in more money than AT