In MLB The Show 26, getting Zac Gallen on your Diamond Dynasty team depends on which version of his card you’re after. From his high-end 91 OVR Mexico City Series card to the standard 77 OVR Live Series version, there are several ways to add him to your roster.

91 OVR Mexico City Series Zac Gallen

The standout Gallen card right now is the 91 OVR Diamond Mexico City Series version. This card is perfect for pitchers who want a strong starter in Diamond Dynasty.

How to Unlock:

Mexico City Series Conquest Map: Play through the map, attacking territories, stealing fans, and conquering all strongholds—including those for the Diamondbacks and Padres. Completing the map rewards you with the 91 OVR Gallen.

Community Marketplace: If grinding the Conquest map isn’t your style, you can buy this card directly from the Marketplace using Stubs. Prices fluctuate, but it’s often faster than grinding.

77 OVR Live Series Zac Gallen

For a lower-tier option, Gallen’s 77 OVR Silver Live Series card is tied to the Arizona Diamondbacks collection.

How to Get Him:

Standard Packs: This card can appear randomly in regular "The Show" packs. Odds are low but consistent.

Team Affinity Packs: Your chance improves significantly if you target the Team Affinity - Bronze/Silver - AZ packs, with roughly a 1-in-3 chance of pulling him.

Marketplace Purchase: You can also buy this Silver version from other players for a small amount of Stubs—usually around 100–130.

Additional Ways to Interact with Zac Gallen

Challenge of the Week: As of April 2026, Gallen features in Challenge of the Week 5. Face him using Kyle Schwarber to earn extra Stubs and challenge your pitching and hitting skills.

Play Now / Franchise Modes: An 82 OVR version is available in offline modes like Play Now, Franchise, and March to October, giving you a chance to test him out before moving to Diamond Dynasty.