Counterspell(Duel)

You attempt to interrupt a creature in the process of casting a spell. You and the creature make contested spell casting checks using a d20 roll + your respective spell casting ability modifier + the level of spell slot used to cast the spell or counterspell respectively. If the creature rolls higher, their spell proceeds uninterrupted. If you roll higher, the creature's spell fails. In the event of a tie, both roll again.