Stone-Cold Basilisk is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Whenever this creature blocks or becomes blocked by a creature with fewer letters in its name, destroy that creature at end of combat. (Punctuation and spaces aren't letters.) Whenever an opponent reads this creature, that player is turned to stone until end of turn. Stoned players can't attack, block, cast spells, or activate abilities.