What it does
"Benediction of the Omnissiah" isn't a standard Magic keyword—it's a unique ability found on a specific card from the Warhammer 40,000 Commander decks (it appears on Cawl's Reliquary / related Adeptus Mechanicus cards). Because it's a named ability rather than an evergreen keyword, what it does depends entirely on the card's printed text, so always read that specific card rather than assuming a rules template.
Generally, these themed abilities tie into the Mechanicus deck's artifact and counter synergies, often involving putting +1/+1 counters, generating value from artifacts, or boosting your machine-flavored creatures.
The main "nuance" players miss is treating it like a reusable keyword—it isn't. There's no rulebook entry; the card's own wording is the authority. When evaluating it in Commander, check the exact triggers, costs, and timing on the card itself before building around it.
Iconic cards with Benediction of the Omnissiah
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