Hydra

Hydra/5|Level 5 Hydra/25|Level 25 Hydra/45|Level 45 Hydra/65|Level 65 Hydra/85|Level 85 Hydra/105|Level 105 Hydra/125|Level 125 Hydra/145|Level 145

Effect

 * When reduced to half its HP or lower, it gains another head. This gives it an additional attack.