Chancellor of Tales

Chancellor of Tales's ability and the copy it creates both resolve before the Adventure spell. They resolve even if the Adventure spell is countered before the copy is created.

If an effect copies an Adventure spell, that copy is exiled as it resolves. It ceases to exist as a state-based action; it's not possible to cast the copy as a permanent.

An Adventure spell means an instant or sorcery spell with the Adventure spell type. Permanent spells that you cast which have an Adventure won't cause this ability to trigger.