What it does
"Medicus Ministorum" isn't a Magic keyword or ability—it's a card name. Specifically, Medicus Ministorum is a creature card from the Warhammer 40,000 Commander decks (a Universes Beyond crossover product). It's a white Human Cleric with abilities themed around protection and healing, fitting its role as a battlefield medic in the 40K universe.
If you're asking about an actual ability on that card, you'd need to reference the specific text printed on it, since "Medicus Ministorum" itself isn't a reusable mechanic that appears across multiple cards. Card names don't carry rules meaning on their own.
If you meant a different keyword—like Lifelink, Ward, Protection, or something from the Warhammer set—let me know the exact term and I'll break down how it works and where it matters in Commander.
