Everyone is very deep - 200 big blinds. A player opens to 700 from middle position and it folds to you on the button with Q♦J♦.
200 BB deep, an opener makes it 700 (3.5 BB); you hold Q♦J♦ on the button. Best?
WhyCall. Suited connectors and broadways shine when stacks are deep, because the times you flop a strong draw or a big hand you can win an enormous pot. That implied-odds potential is exactly why you call rather than bloat the pot with a 3-bet.
What happensYou call; the blinds fold. Heads-up, 200 BB deep. Pot: 1,600 (8 BB).
Flop
Flop: A♦ 7♦ 3♣ - you flop a flush draw, nine outs. He bets 1,200, so you'd call 1,200 to win 2,800 (~2.3-to-1). With one card to come you're only ~19%.
By direct odds (~19% next card vs a price needing ~30%), this looks short. Best?
WhyCall. On direct odds it's a touch short - ~19% to improve next card versus a price needing ~30%. The reason to continue is implied odds: 200 BB deep, the times your disguised flush comes in you can win far more than the 1,200 you invest now. Deep stacks turn a draw that fails on direct odds into a clear call.
What happensYou call. Pot: 4,000 (20 BB).
Turn
Turn: 5♦ - you make the flush. He bets 3,000 - and the deep stacks are still behind.
Your flush is in and he keeps betting. Best?
WhyRaise for value. This is the payoff the implied odds promised: with 200 BB behind, raise and get money in against his likely strong made hand (a set or two pair on this board). The big pot you can win now is the entire reason the flop call was correct.
What happensYou raise; he commits with a set, and your flush holds. You win a 200 BB pot - the implied-odds payoff.
Direct odds said fold on the flop, but 200 BB behind meant the chips you'd win when the flush arrived made the call profitable - and it paid off in full. Implied odds are real money, and deep stacks are when they matter most.
Implied odds are the chips you expect to win on later streets when you hit - deep stacks justify draws that direct pot odds alone would reject.