Omnilingualism: Giltenn has the knowledge of a thousand thousand languages, and learning new languages come easily. Some are shared across worlds, allowing Giltenn to understand them immediately, translating for Jude mentally. For those languages they don't already understand, they will pick up the language at an inhuman pace. A few hours of hearing a language is enough for Giltenn to understand most things. Actually speaking using this knowledge, however, is imprecise - he's never going to sound quite right, since he's just repeating what he's told to say.
