Crafted to resemble a band of woven thorns with small metal spikes along the inner side, this ring looks more like a torture device than a piece of jewelry.  While wearing this ring, any time you cast a spell, you may choose to take damage to forego all material component requirements for that spell.  The damage you take equals 1d6 necrotic damage per level of the spell.  This damage cannot be reduced in any way.

Notes: spellcaster, Jewelry