Spell Survivor

Once you've resisted an opponent's magic, anything else they throw your way becomes less effective. When you attempt a saving throw against a spell using Orc Superstition or Pervasive Superstition and critically succeed, you gain resistance 1 to all damage dealt by that triggering spell's caster until the end of their next turn. At 9th level and every 4 levels thereafter, the resistance increases by 1.