"Ast tasarak sinwalan krynawi," Raistlin murmured, and then moved his right hand slowly in an arc parallel to the shore.
Tanis looked back toward land. One by one the goblins dropped their bows and toppled over. [...]
"What did you do to them?" asked Tanis [...].
"I put them to sleep," Raistlin hissed through teeth that clicked together with the cold. "And now I must rest." He sank back against the side of the boat.
Tanis looked at the mage. Raistin had, indeed, gained in power and skill.
OK, Raistlin had gained in power and skill since when? Exactly what level was Raistlin when Tanis used to adventure with him? Sleep is a FIRST LEVEL SPELL. If Raistlin wasn't high enough level to put goblins to sleep, what was he casting back then? Cantrips?
Caramon was even snoring. The kender remembered Raistlin's sleep spell and figured that was what the draconians had used on his friends.
I guess every draconian is also an unusually promising student whose power frightens even the mages of the High Tower or whatever it is called.