Blood of Tyche
This golden vial holds swirling liquid luck—and a deadly poison.
Consumable: Potion 1,000 gp
Power Consumable (Minor Action)
Drink this potion and spend a healing surge. You do not regain hit points as normal. Instead, once before the end of the encounter, when you make a skill check, ability check, or saving throw, you can reroll the check or roll but must use the second result.
Published in Dragon Magazine 388.