you can keep her for now...

RUSALKA must give up by submitting, fleeing or passing out, and may no longer participate in the raid.

Totals:

RUSALKA:
Attack Roll: 86
Defense Roll: 87
Agility Roll: 79
Perception Roll: 54
Total: 306

Attack[86] + 30% Bonus[25.80]: 111.80
Defense[87] + 15% Bonus[13.05]: 100.05
Agility[79] + 30% Bonus[23.70]: 102.70
Perception[54] + 0% Bonus[0.00]: 54.00
Total[368.55] + 25% Bonus[92.14]: 460.69

TARNISH:
Attack Roll: 35
Defense Roll: 87
Agility Roll: 97
Perception Roll: 90
Total: 309

Attack[35] + 70% Bonus[24.50]: 59.50
Defense[87] + 25% Bonus[21.75]: 108.75
Agility[97] + 0% Bonus[0.00]: 97.00
Perception[90] + 0% Bonus[0.00]: 90.00
Total[355.25] + 65% Bonus[230.91]: 586.16