What it does
I'm not aware of a Magic: The Gathering keyword or ability called "Probing Telepathy." This doesn't appear to be an official keyword, evergreen ability, or named mechanic in any MTG set or rules document.
It's possible this is a made-up term, a card name you're misremembering, or something from a fan/custom set. If you've seen it on an actual card, double-check the exact wording—it might be the name of a specific spell or a flavorful ability rather than a reusable keyword.
If you can share the card or where you encountered "Probing Telepathy," I'm happy to explain how it actually works, including any rules nuances and its relevance in Commander. I'd rather give you accurate information than invent rules for a term I can't verify.
Iconic cards with Probing Telepathy
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