At the beginning of combat, you may flip the lucky coin and call heads or tails. If you call it correctly, you gain 1 luck during this fight and expires at the end of combat. This luck can be used only on your turn and only to reroll damage dice. You must use the new roll.

If you call it wrong, your first attack this combat has disadvantage and you suffer 5 points of psychic damage. This damage can't be prevented.