As a reaction, which you use when you are hit by an attack or missed by 4 or less that you can see, your skin turns as hard as stone. Until the start of your next turn, including against the triggering attack, choose one of the following options:

• Roll a d4 and add the result to your Defense
• You have resistance to bludgeoning, piercing, and slashing damage from attacks that aren’t adamantine You can do so after the roll but before any effects of the roll occur.

Augment

• You can expend 1 additional mana to trigger the spell when a creature that you can see within 10 meters is attacked. The attacked creature gains the benefits instead.

• Stone’s Shelter. You can expend 2 additional mana to instead become encased in stone as the attack’s damage against you is halved. For 1 minute/mana or until you end this feature on your turn, a non magical dome of solid stone springs into existence around you. The dome forms up to 30 centimeters away from your body in all directions and is 30 centimeters thick.

  The dome is an object made of stone that can be damaged and thus breached. It has 16 Defense and 80 Health. Reducing the dome to 0 health destroys it.