If you have less [Life] than an opposing hero, Arcanite Skullcap has +1[Defense] and Arcane Barrier 3. (If your hero would be dealt arcane damage, you may pay [3 Resource] instead. If you do, prevent 3 arcane damage that source would deal.)
Battleworn (If you defend with Arcanite Skullcap, put a -1[Defense] counter on it when the combat chain closes.)