Set with a turn flush facing all in.

Raise the flop - its so draw heavy and you are against 2 ppl.

With the money already IN i think you should call but you are very often vs Flushes, 67 or A2 type of hands. You still have equity though.

Even against 3 people. The BTN folds after the pot bet and the call on the flop.
I would most likely min raise with in mind the short stack will be all-inn anyway and this way you give both villain behind you bad odds to call with draws and if you make it more you are committed as well. Thois way you give villains the change to think you can still fold on a 3bet shove.

Turn play i would most likely iso shove myself. Now you call looks pretty weak and villain could have a flush, but maybe even a weaker set as well. Hard to fold I think.

Cheers,
SDK1987

It is a close decision and is villain-specific. If you think that he is capable of semi-bluffing all-in with A♣:x, then you should call. If he is a maniac, you call. If he is a nit, you fold. In the general case, most probably, it is a close fold.

On the flop there is no hand that is ahead of you so I would go all in, and if they call and it is poker stars you have a cash out option if you want it.