I'm making a TD map and i want towers to have lifesteal ability, but only after i research a tech called "Lifesteal". For that i tried to give towers the vampiric aura, but vamp aura only affects meele so in a TD that can't be done. Secondly i tried to use the Lifesteal(frostmourne) ability but here comes the big problem: Lifesteal(frostmourne) has NO icon, even if i put one and then even if i write the research i made "lifesteal" in the Techtree - Requirements section, towers HAVE lifesteal even if i don't research "lifesteal" during a game. This ability drives me crazy as it doesn't do what i want it to. Anyone plz come up with a solution.