"Meteor Strikes" isn't an official Magic: The Gathering keyword or ability—it doesn't appear on any printed cards or in the comprehensive rules. You may be thinking of something else, perhaps confusing it with a flavorful card name, a homebrew mechanic, or a term from another game entirely.
There are real cards with "meteor" in their names, like Meteor Golem (which destroys a permanent when it enters) or Meteor Shower (an old X-spell). But these don't share a unifying keyword called "Meteor Strikes."
If you encountered this term on a specific card or in a custom/playtest set, double-check the exact wording, since reminder text usually explains how an ability functions. I'm happy to explain a real keyword—like Annihilator, Cascade, or Myriad—if you let me know which one you actually meant.