Sorcerers that hit level 48 will get a quest from their teacher in KT to learn Power Nova, the balance 7 pip spell. Along with this quest comes a reward of a Hydra pet, giving 5% power pip chance plus a hydra card (with stats equivalent to a treasure).
Life: Satyr Ice: Colossus Death: Wrath Fire: Helephant (I LOVE THIS, SO CUTE!) Storm: Stormzilla (OMG CUTE!) Myth: Orthrus