J♠T♠ BTN vs BB, turn on J♣ 8♦ 5♠ Q♠, 75 bb

Best play: Raise

Why

The Q♠ turn is a strong card for your range and shifts the nut advantage your way while bringing a spade flush draw. Your J♠T♠ flopped a pair of jacks and now holds an open-ended straight draw (a 9 or K completes 9‑T‑J‑Q‑K) plus a spade flush draw off Q♠5♠ — a pair-plus-double-draw monster with massive equity. Raising is the clear turn play: you semi-bluff with a hand that has both showdown value and ~15 outs, applying maximum pressure while you can stack off or improve to the effective nuts on the river.

Key idea

Pair plus a double draw on a card that favors your range is a premium semi-bluff raise — value and equity together.

Common mistake

Flat-calling this monster combo draw — you under-realize equity and miss building the pot with a hand that wants stacks in.