Harry Potter's Potions: Felix Felicis

Felix Felicis, also called "'Liquid Luck'", is a magical potion first introduced during Professor Slughorn's initial potions class in Hogwarts. Felix Felicis makes the drinker lucky for a period of time, depending on how much is taken, during which everything they attempt will be successful. It is meant to be used sparingly, however, as it causes giddiness, recklessness, and dangerous overconfidence if taken in excess. (source: [link])

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