Bishop's Purging Fire

Choose a creature you can see within range. That creature must make a Constitution saving throw. On a failed save, they take 2d8 Fire and 2d8 Radiant damage and lose resistance to either acid, cold, fire, lightning, poison, or thunder for the duration, or until the spell ends. On a success, the creature takes half damage and does not lose the chosen resistance. The damage is applied before the resistance is removed.