The Joker

You conjure and then throw 6 magical cards with one of the following effects at a creature that you can see within range. Make a ranged spell attack against the target. On a hit, a target is hit by a card of one of the following colors, which each have a unique effect and purpose. For each target, roll a d4 to determine which color card effects it. If the attack hits, the creature takes 6d4 with one of the following effects.

1. Red: The target takes 6d4 + your spellcasting ability modifier fire damage.
2. Black: The target takes 6d4 + your spellcasting ability modifier acid damage.
3. Blue: The target takes 6d4 + your spellcasting ability modifier lightning damage.
4. White: The target takes 6d4 + your spellcasting ability modifier cold damage

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases 2d6 for each slot level above 1st.