Light City - Two-Face's Coin

I'm working on a Batman game using Light City content and I've come up with a  new item that I wanted to share.

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Two Face's Coin - This scarred coin once belonged to Harvey Dent. The coin allows its user to roll two d20's when taking an action. However, they must flip a coin. If the result is positive they get to use the better of the two rolls, if it's negative they have to use the lower number.
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Yes I realize this is a coin that randomly gives you 5th editions Advantage or Disadvantage, but damn thematically I think it's on point!