Durability 2

Baltrice rose to attack, and a three-clawed foot whipped across her face as a spinning back-kick sent her sprawling across the open chamber. Blood poured from her nose and lip, and one of her eyes was already swelling shut.

...

Baltrice, the world spinning around her as she failed to summon a creature to her aid, found herself desperately wishing she hadn't wasted so much of her strength on her previous spells.

Agents of Artifice (Magic The Gathering: Planeswalker Book 1), Chapter 14