Damage exchange

You manipulate the nature of a creature’s suffering, altering the energy of an ongoing affliction. Choose one creature within range that is currently taking ongoing damage from a condition (such as poisoned, burning, or necrotic decay). You replace that damage type with a different one of your choice: acid, cold, fire, lightning, necrotic, poison, psychic, radiant, or thunder.

If the condition does not normally deal damage, the target instead takes 1d8 damage of the chosen type at the start of each of its turns for the duration, but the original effect of the status affliction is gone. For exaple: If an enemy was paralyzed and you casted Damage Exchange on it, it'll start taking 1d8 damage of the chosen type for the duration of the affliction, but the enemy can now move again.

Additionally, if the target has resistance to the original damage type but not to the new type, the effect bypasses that resistance. Conversely, if the target has resistance to the new damage type but not the original, the damage remains unchanged.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 per slot level above 2nd.