The spirit of renew is a monster that Gregorovic summons during the second wave of the boss fight in Sliske's Endgame. The spirit heals Gregorovic for 10,000 life points at first, increasing to 20,000 if Nomad or Linza are killed first. Therefore, it should be disposed of as soon as possible in order to keep Gregorovic from healing. Gregorovic can summon another spirit even if the last one is still alive. It will ignore the player until it is damaged.