Complex sentence: Pseudodragons are extremely rare in this world, and although they serve as familiars to Wizards of High Sorcery, they are found only on the Dragon Isles and in Ravenwood Forest on the border between Neraka and Thrott.
Split into simpler sentences: Pseudodragons are extremely rare in this world, and occasionally serve as familiars to Wizards of High Sorcery. They are known to be found on the Dragon Isles and in Ravenwood Forest on the border between Neraka and Thrott.