Rival Coin

Wondrous Item, Common

The coin has 1 charge and regains its expended charge daily at dawn. You can take a Magic action to toss the coin, expending its charge.

Heads: Target one creature you can see within 60 feet of yourself. The target makes a DC 13 Wisdom saving throw. On a failed save, the target takes 2D4 Psychic damage and has Disadvantage on the next attack roll it makes before the end of its next turn. On a successful save, the target takes half as much damage only.
Tails: You take 1D4 Psychic damage.

Heads: Ladder
Tails: Snake