[Nightwish]

Yikes.

I typically would not 3-bet this preflop, opting instead to call and see what the flop brings. You may have the best hand right now, but with that many opponents, you are really vulnerable to overcards, and you have no way of pushing out anyone who is already in. Calling also allows you to keep the pot smaller, which may help you later if you need to push people out.

Given that you 3-bet preflop, I agree with your flop bet, and you have to call the raise simply because you're getting 18:1. But you're essentially playing for a set or some sort of runner-runner straight at this point.

Now the turn is where I really dislike your play. What's the point of the donk bet? Are you betting for value? I can't see how, unless you think they're both on draws on this rainbow board. Do you think your bet will fold a guy who raised the flop or a guy who cold-called? Again, I can't see how. If anything, you wouldn't necessarily mind it getting checked through, though even that is unlikely to happen. And if it does get checked to the last guy who then bets, you might even opt for a move like a check-raise, thereby putting pressure on the LAG if he does in fact have you beat right now. The donkbet just makes no sense here, and putting in 2 bets here sucks.

The river is a whole other story. Now you need to bet because no one will bet unless he has the straight himself. Going for a check-raise doesn't make much sense because you'll whiff far too often. And then you can end up in situations like these. I hope you at least split the pot.....