What Varys really meant is he expects nothing less from the daughter of Mad King Aerys
Your lordship lost a son at the Red Wedding. I lost four upon the Blackwater. And why? Because the Lannisters stole the throne. Go to King’s Landing and look on Tommen with your own eyes, if you doubt me. A blind man could see it. What does Stannis offer you? Vengeance. Vengeance for my sons and yours, for your husbands and your fathers and your brothers. Vengeance for your murdered lord, your murdered king, your butchered princes. Vengeance!
Nobody going to mention how Jon Snow only has like 2,000 warriors eh...
Your lordship lost a son at the Red Wedding. I lost four upon the Blackwater. And why? Because the Lannisters stole the throne. Go to King’s Landing and look on Tommen with your own eyes, if you doubt me. A blind man could see it. What does Stannis offer you? Vengeance. Vengeance for my sons and yours, for your husbands and your fathers and your brothers. Vengeance for your murdered lord, your murdered king, your butchered princes. Vengeance!