Foster Griffin is a Silver 79 OVR Starting Pitcher card for the Guardians, 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, Foster Griffin works with a 4-pitch arsenal led by a 93 mph 4-Seam Fastball and a 92 mph Sinker. His pitching ratings include 79 Velocity, 54 Control, and 62 Break. The profile favors a balanced mix of command and movement.

DiamondOps grades each pitch in Foster Griffin's arsenal: 4-Seam Fastball (S), Cutter (S), Sinker (S), and Curveball (B). 3 of them grade S-tier, which is what separates a genuine out-pitch mix from a deep-but-flat arsenal. Its strongest tunnel pairing is the 4-Seam Fastball off the Sinker, so the two share a release look. Velocity works against the card here — its 79 mph Sinker is slow enough to cost it in the arsenal score. Arsenal grades are the same at every difficulty — unlike a hitter's OpScore, a pitch mix does not re-weight as you climb.

On the Diamond Dynasty market, Foster Griffin currently buys for about 198 stubs, with sell orders near 0 stubs. Over the past 7 days the buy price has fallen roughly 55%. Its quick-sell value of 150 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. Foster Griffin earns an OpScore of 54.3 on Legend difficulty, ranking #2355 among all cards and #482 among Starting Pitchers.