Here, I'm not too sure about how I palyed it. PF is marginal, otf, I have some value hands I might want to raise, but not too many, and I feel like this is my best bluff candidate.

Ott, I feel like villain can still have QQ, but I feel like he could 3bet it otf sometimes, and possibly A5s. It feels like a spot where I could overbet, but I'm not too sure.

Then, would an overbet jam (to roughly 70bb) be a good idea? I block Ah3h and Ah4h, which would take villain's line I reckon, so not ideal, but I don't think turning a hand like KQ into a bluff is ideal, and I'm not sure I'd have too many Qx that would take this line. Also, the now that both the 5 and 2 have paired, there really aren't that many value hands I'm repping. 1 combo of 55, one of 22, and maybe the odd A5, A2, 32s, or 54s/65s that took this line otf. Would this be better with just using the other 43s as bluffs, or can I fit 4h3h in as a bluff?

PokerStars - $0.10 NL FAST (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

BTN: 107.2 BB
SB: 100 BB
Hero (BB): 229.4 BB
UTG: 166.6 BB
MP: 101.9 BB
CO: 108.3 BB

SB posts SB 0.5 BB, Hero posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has 3 4

fold, MP raises to 2.5 BB, fold, fold, fold, Hero calls 1.5 BB

Flop: (5.5 BB, 2 players) 5 2 Q
Hero checks, MP bets 1.7 BB, Hero raises to 6.1 BB, MP calls 4.4 BB

Turn: (17.7 BB, 2 players) 5
Hero bets 21 BB, MP calls 21 BB

River: (59.7 BB, 2 players) 2
[color=red]Hero ???

I like it. I think the river is a give up possibly. But I'm okay with jam or fold.

in theory you can play aq and maybe even kq with cr, also villain cbet and call a lot of 5x, and he definitely only call them on turn, in villain eyes you are bluff heavy here, some wheel aces, 34s, propably hands like 67 with bdfd cr this flop, by overbetting you rep 5 and quads only, but you range on river is very polarized towards super nuts and air, so yeah-huge overbet make sense

It's fine but you're gonna get heroed a lot since you're only repping a handful of value hands, i would try to be more selective with my bluffs

When you x/r this flop you are realistically repping 6 value combos of 55/22. By the river that's down to 2 combos. If I'm the villain in this hand I'm going to the felt with KQ on this runout, maybe even QJ. Maybe you can have 54 that plays this way, but again only 1 combo. There are a few more bluff combos on this board with some wheel aces. I'd be somewhat cautious when you take this line on a board where it looks like there's more natural bluff combos than value hands. Realistically we should have a mixed strategy, so bluffing this sometimes is OK. But in a spot where we're getting called a high %, maybe it's just a good give up.

Thanks for the feedback! I did feel like it was a bit of a hail Mary otr, and I was a little surprised to get a fold. I'm repping such a narrow range, I think I'd only bluff those two 43s without h.

Good turn sizing.