What it does
I don't have any information about a Magic: The Gathering keyword or ability called "Galian Beast." This doesn't correspond to any official MTG keyword, ability word, or mechanic that I'm aware of.
It's possible you're thinking of something else—perhaps a specific card name, a creature type, or a term from another game entirely. Magic does have creature types like "Beast," and there are many named legendary creatures, but "Galian Beast" isn't one I can identify.
If you can share more context—such as a set name, where you encountered the term, or the full card text—I'd be happy to help explain the actual mechanic involved. Alternatively, if you meant a real keyword like Trample, Flying, Deathtouch, or an ability word, let me know and I'll give you the rundown.
