Rankle, Master of Pranksters 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

Flying, haste Whenever Rankle, Master of Pranksters deals combat damage to a player, choose one at random — • Each player creates a token that's a copy of Glen Elendra Pranksters. • Each player creates a token that's a copy of Pyretic Prankster. • Each player creates a token that's a copy of Spiteful Prankster.