Lamora's Coin

+1 Gold Coin (It's a gold coin that's worth 2 gp)
{t}: As an action you may flip the coin, causing
all creatures within 30 feet that can see the
coin to make a DC 15 wisdom saving throw.
All creatures who fail are transfixed by the
prismatic colors, giving them disadvantage on
perception or attack rolls against anyone except
you.