[Edi]

Each hydra has 9 different forms and so long as it survives in any form, it reverts back to the first form afterward. The things are absolutely goddamn brutal. That's what makes it such a shame that the SC hydras have wrong secondshapes and firstshapes, because give them a F9/W9 bless and they will wipe the floor with practically anything. Doesn't matter if it's a Niefel or Fomorian Giant with N10 bless (20% regen), they WILL go down.

The hatchlings only have 3 forms, so they die much more easily.