Do you have the odds to call with a combo draw?

When a flush draw and an open-ended straight draw arrive together you have around 15 outs, which is more than half the deck working for you by the river. On the flop you are often a favorite, so you can call any bet and frequently raise as a semi-bluff with real equity behind it.

On direct pot odds, 15 outs lets you profitably call a flop bet up to any size. Deeper stacks and implied odds push that higher.

Quick tip: A 15-out combo draw is a flop favorite. Call or raise, do not fold.