Pram definitely didn't notice the Assassin creeping up on her until a spell was cast on her. When she saw the Assassin being forced to change its target to the Paladin who had a whole swarm of enemies at him.

What was he, an idiot??? Overlords didn't need any protection!! Pram, A+ team player.

With a frustrated growl, she started unleashing a series of beams before blasting a huge gust of ice at the Grunts' way, creating a large ice prison for a moment before shattering to pieces. That should take care of a good portion of the army...