Button open raises. He is a fairly aggressive but not good mid stakes regular. So I'd say his opening range is probably close to correct and he will play his strong hands aggressively but he is not really a good hand reader and certainly doesn't understand much game theory. I don't think he would have an open limp range from button but might from other spots. He's also possibly tilted because I've won a bunch of pots from him and he's stuck quite a bit.

I 3 bet red 88 from the small blind, big blind folds and button calls.

Flop A83 with 2 spades and 1 heart. I bet, he calls.

Turn 7h putting up 2 hearts. I bet, he raises, I 3 bet and he calls. When he raises the turn, I feel like any Ax is a possibility but also think he can have stronger hands, probably some draws and possibly some other ridiculous things.

River Ax

What river line do people like here?

Bonus question: Let's pretend I had AK and took the same line up until the river. What line would you prefer now?

If villain will raise with triple aces thinking his hand has just improved, I'd bet intending to 3 bet.

If villain understands that his triple aces hasn't improved vs. your range, I'd check intending to x/r.

If villain's range is weighted toward heart flush draws and some triple aces, I'd check intending to x/r.

Yes it has.

No it hasn't phunk. The only hand I might have that he would pull ahead of would be 78s but that hand clearly shouldn't bet the river.

Removing an ace means hero now has fewer combos of value and proportionally more combos of bluffs.

Why would he bet the river then? Or call the raise?

Just bet your damn hand on the river and probably just call if he raises

Many peoples bluffing range with this board and action is bordering on zero. the proportion of bluffs may have gone up but so did the proportions for hands that can 3 bet

I THINK optimal line here is chk/raise and fold to a raise, no?

In a vacuum, I bet/call this. Villain's value is going to include a lot of Ax that is likely in cry-call showdown mode. We do miss value from bluffs, but I agree with ZOMG that their bluffing range should be approaching 0 combos after we 3 bet the turn.

Against this villain, if we think he's going to be betting the river substantially often because "omg I have trips" or "****, I missed all my draws but **** it", then c/raise.

I can't image check/calling river unless turn got capped.

Not if they can hand read

If someone is dumb enough to bet a weak ace on the river because he checked, there's a good chance they're dumb enough to raise with it because trips.

I'd bet and either just call or three bet depending on how bad villain is.

Because maybe he's smart enough to understand his hand hasn't improved, but dumb enough to bet when checked to on the river.

He's smart enough to realize that his triple aces hasn't improved vs. our range, but we've checked and now our range is polarized and he's afraid he'll miss value if he checks back, so maybe he's dumb enough to bet. He'll call our raise because he doesn't want to get bluffed.

I think the best line to take vs. this villain as described is to bet intending to 3 bet.

I think it's pretty important to note whether or not A on the flop is a spade or not.

Yes flop ace was a spade

Polarized between hands that crush him and hands that can't call. If he bets it's to get value against the last ace, and if he's willing to do that then betting out lets him raise us so we can 3b when we want. Going for the c/r lets it check through a ton And it opens us to a three bet we really really don't want. Checking the river increases the chances of both the very worst things that can happen. Zero bets go in or he three bets us. That seems like enough to just bet

Every body always trying to over complicate things when the answer is always just bet your damn hand

Sounds right. Just go with the first thing I said which was to bet intending to 3 bet.

I think we need to bet here. Live villains tend to call too much, and we need to exploit that.

Call or 3! if he raises is a legit question. I'd go with call unless you have evidence that he'd raise Ax here.

B/3! River

this imo.