Keider Montero is a Silver 79 OVR Starting Pitcher card for the Tigers, part of the Live set in MLB The Show's Diamond Dynasty. He throws right-handed. The card was added to Diamond Dynasty in April 2026.

On the mound, Keider Montero works with a 5-pitch arsenal led by a 94 mph 4-Seam Fastball and a 94 mph Sinker. His pitching ratings include 90 Velocity, 61 Control, and 99 Break. The profile favors a movement-heavy arsenal built to miss bats.

DiamondOps grades each pitch in Keider Montero's arsenal: Slider (S), 4-Seam Fastball (S), Sinker (S), Circle Change (A), and Knuckle-curve (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 90 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, Keider Montero currently buys for about 207 stubs, with sell orders near 150 stubs. Over the past 7 days the buy price has climbed roughly 48%. Flipping at current buy and sell prices nets roughly 34 stubs, about a 23% return. DiamondOps suggests waiting for a better entry point.

OpScore is DiamondOps' composite rating of a card's in-game performance value. Keider Montero earns an OpScore of 65.6 on Legend difficulty, ranking #1494 among all cards and #330 among Starting Pitchers.