Double or Nothing

When you cast this spell, pick something you want to magically double the amount of. This spell is very risky to use. Roll a d20. On a 1-10, the chosen thing vanishes from existence. On an 11-20, the chosen thing magically doubles. Can be casted on anything- including players. If a player ends up being reduced to nothing, the DM decides what small yet short punishment they must endure in order to get there character back. If their character is doubled, they now control two identical beings. The new character copies the original and takes the exact same actions. On non-combat based saves, roll with advantage.