As a rifter AND a mage, Martel is going to get a lot of Cassandra's attention (and not the good kind). She'll ask him a lot of sharp, unpleasant questions about his shard, his magical abilities, what magic he's been doing since he got to Thedas, and if he's ever experienced any signs or indication that he might be able to open a rift himself (accidentally or otherwise). She will be disinclined to let him out of her sight without Templar supervision.

:) hooray new cr