Hannibal's eyes dance with dark glee at her question. "I will subvert my latest class of people who desire to be my elite assassins. Their jobs will be to stir up some people and keep themselves alive. If they are killed by her secret agents, then they won't be worthy of becoming one of my assassins." He said simply. They would play mind games with his niece. He doubted anyone in Essos had the capability to play such games. He wanted to build doubt in her mind that King's Landing would be worth the effort of a battle. Especially one where she would loose many she brought with her. He intended to infect any Dothraki who set foot in King's Landing with a simple ailment that everyone in King's Landing would suffer through and then survive. He doubted the Dothraki would be able to cope with it. It would demolish any calvary she brought in days. Not to mention how superstitious they were. It would make them uneasy of living in the city and they would beg her to return home. He would offer remedies to help stop the illness, but as soon as a dozen Dothraki died (even with aid) their superstitious nature would get the better of her.