Yahtzee

The target makes a str, dex, con, wis, and int saving throw, if they fail any save, they take 5d6 force damage per failed save and if they fail all saves they instantly die. Failing 3 or more saves renders the target stunned, and they may roll 5d6 at the start of each of their turns, and may choose to reroll any of those dice once. They snap out of the stun if they roll five of the same number on the dice. The stunned condition cannot be removed otherwise by anything less than a wish spell.