Art of the Kipine

You attempt to drain a creature's mana, veering the power drawn from the weave. The full spell slot you gain must be 1 level lower than the spell slot you used to cast this. The creature has to make a Wisdom saving throw against the caster's spell save DC. If the creature fails, they lose a full spell slot that is 1 level lower than the spell slot you used to cast this on them, leaving it empty. If the creature succeeds, they receive 2d6 force damage.

If the creature has no full spell slot available to drain that is 1 level lower than the spell slot the caster used, the creature rolls a Wisdom saving throw against the caster's spell save DC. On a failed save, they receive 6d6 force damage. On a successful save, they take half the amount in psychic damage.

At Higher Levels. When you cast this using a spell slot of 5th level or higher, increase the level stolen by 1 and add 2d6 for each level.