Crystallise Power

You place your hand on a willing creature, and transfer the creature's energy into a small pearl. Direct skin contact is required for the spell to work. Attempting to complete this spell through clothing or armour will cancel the spell without consuming materials. The spell also fails if the caster is no longer touching both the creature and the pearl.

Choose one of the creature’s Ability Scores (Strength, Dexterity, etc). Record the modifier for that ability. After the spell finishes, the affected creature gains 1 points of exhaustion, as their power has been siphoned into the pearl. The pearl now faintly glows with energy. If you wish, the pearl may change colour or glow more intensely, depending on the ability modifier stored within it.

As a bonus action, you may choose to swallow the pearl and receive its benefits for 10 minutes. While active, you may add the pearl’s recorded modifier onto any attack roll, ability check, or saving throw made of that Ability Score. If swallowing the pearl would result in having a negative modifier, you may treat it as +0.

You may have multiple pearl effects active at once. Each pearl has their own duration. If you consume a pearl of the same Ability Score, they do not stack, and the pearl with the higher modifier is used instead. Consuming a pearl of the same Ability does not refresh the duration for it’s effect.

Consuming a pearl from another creature has no effect.

When you cast this Spell using a spell slot of 3rd level or higher, you may choose to enchant an extra pearl for every two spell slot levels above 2nd. It can be of the same Ability, or a different one; but each pearl still gives 1 point of exhaustion.