Darel's Wager

Spell lists: Sorcerer, Wizard & Warlock
3rd-level Evocation spell
Casting Time: 1 action
Range: 60ft
Components: V, S, M (a deck of cards)
Duration: instantaneous
Roll any number of d8s, then make a spellcasting ability check with a DC equal to the number of dice you rolled + 10. On a success, one creature you can see within range takes an amount of force damage equal to the number rolled. on failure you take the damage instead.
At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot level above 3rd. This does not increase the DC of the ability check.