Single Target Action: You bite target creature at touch range, dealing 1d4 Piercing Damage per Character Level. This scales with 200% Melee or Ranged Power (though is not a weapon attack and cannot crit). If that creature is a living and corporeal creature, you heal for 20 + (Character Level x Constitution Modifier) number of Hit Points from Positive energy. This damage does not have a saving throw, though upgrades to this ability may have one.