What it does
"Share Intelligence" isn't a standard Magic: The Gathering keyword or ability—it doesn't appear in the comprehensive rules or on any official cards. You may be thinking of a similarly themed mechanic, or it could be a custom/homebrew card, since fan-made and unofficial sets sometimes invent flavorful abilities like this.
If you encountered this on a real card, double-check the exact wording, as the text printed on the card defines what it actually does. In Magic, abilities work precisely as written, regardless of how evocative the name sounds. If it's from a custom set or a platform-specific card, consult that source's rules for the intended behavior.
For Commander specifically, always verify unfamiliar abilities against an official source like Gatherer or Scryfall before assuming how they interact, so you don't build around something that doesn't function as expected at the table.
Iconic cards with Share Intelligence
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