One of my l2 friends which play only TH he said to me that if you want LETHALS use focus chance...If you want dmg +dmg +dmg use focus power and i think that he say me the truth....
P.S. This works on high rate servers i think...
Lethals arent all the time 1 % life maybe you gona take 50% life...there are diferent kinds on lethals..