Cassandra's Horrid Pain

This spell causes a terrible horrid pain throbbing from the head. The target must succeed on a INT saving throw or take 3d10 psychic damage and take 1d10 psychic damage each turn until the spell ends. While suffering the effects of this spell the affected creature has disadvantage on saving throws and attack rolls.

When cast at a higher level than 4th level add 1d10 to the initial damage.