Brittleskin

Brittleskin causes a target's flesh to dry and harden into brittleness, shattering in a moment.  A caster makes a Spell Melee Attack against a creature.  On a hit, the target must make a Constitution Saving Throw, or suffer the effects of embrittlement depending on the location the caster touches.  The caster rolls 1d6 for the location of this attack:

1. Head - Instant death (The target's head falls apart)
2. Right arm - Arm falls off and cannot be used.
3. Left arm - Arm falls off and cannot be used. 
4. Torso - Instant death (The target's torso shatters with major internal organs destroyed)
5. Right leg - Leg falls off and cannot be used.
6. Left leg - Leg falls off and cannot be used.

If the indicated location doesn't exist, for example the caster rolls a 2 and the target is already missing its right arm, reroll and use the new result.