Without Bull's Strength some of his martial options become more limited, have to be done in particular ways. Grab Carissa's right arm, bring up his fist in a powerful blow to break her right elbow, to make it harder for her to draw and use her dagger. Then put Carissa into a chokehold that Security insisted on training Keltham in, as an anti-spellcaster technique.
(...why is he playing along, to this extent... because maybe he can turn it real, or, real enough to take Carissa with him when he actually leaves...)