John King is a Bronze 69 OVR Relief Pitcher card for the Marlins, part of the Live set in MLB The Show's Diamond Dynasty. He throws left-handed. The card was added to Diamond Dynasty in April 2026.

On the mound, John King works with a 5-pitch arsenal led by a 94 mph 4-Seam Fastball and a 93 mph Sinker. His pitching ratings include 89 Velocity, 39 Control, and 94 Break. The profile favors a movement-heavy arsenal built to miss bats.

On the Diamond Dynasty market, John King currently buys for about 36 stubs, with sell orders near 0 stubs. Over the past 7 days the buy price has fallen roughly 54%. Its quick-sell value of 12 stubs sits at or above the sell price, making it quick-sell viable. DiamondOps currently rates the card a buy at this price.

OpScore is DiamondOps' composite rating of a card's in-game performance value. John King earns an OpScore of 55.7 on Legend difficulty, ranking #2039 among all cards and #360 among Relief Pitchers.