Corruption -a DoT spell

You point a crooked finger at a creature you can see within range, slowly but surely decaying its form.  At the start of the target's next three turns, it takes 1d4 + 1 necrotic damage.

Due to the subtle nature of the damage, it does not require creatures concentrating on spells to make a concentration check.  In addition, creatures that take damage from this spell while at 0 hit points do not fail death saving throws.

If you cast Corruption on a creature, casting it again on the same target while the spell is still active resets the duration, but does not add a second Corruption effect.  However, multiple casters can target a single creature with multiple Corruption spells.

At Higher Levels:  When you cast this spell using a spell slot of 2nd level or higher, the duration is extended by one round per slot level above 1st.