Curriculum of Strategy: Inflict greater Weakness

The caster attempts to let negative energy flow through a creature, forcing it to make constitution save against the casters sepll save dc. On a failed save, the caster can afflict one of the following effects :
- lower the targets ac by 1d4+1

-Give the target disadvantage on one kind of saving throw

-Give a target weakness against a damage type or lift resistance, immunity is not afflicted

For every Level this spell is casted over 6th level, one additional creature can be targeted