As an Investigator with other means, yes. As an Infiltrator, no.
But you can have a Dreamcatcher for the jaunt if you have such a role, even
if you don't have the skill AC to claim one - that just means you won't be
able to keep it afterwards.
Travelers have used Champion Magic in other worlds while awake, and the
same would apply to Harbinger magic.
no subject
As an Investigator with other means, yes. As an Infiltrator, no.
But you can have a Dreamcatcher for the jaunt if you have such a role, even if you don't have the skill AC to claim one - that just means you won't be able to keep it afterwards.
Travelers have used Champion Magic in other worlds while awake, and the same would apply to Harbinger magic.