So to answer your question, "No." Deadly Bash (passive) does not affect Power Bash (skill). Deadly Bash only affects the standard bash attack that all weapons have. With a 1h1s, you are assumed to be the tank of the group and should therefore have more situational awareness, which leads to you being the most likely to bash an enemy caster out of their spell animation.passive skill deadly bash affect power bash active skill from 1h and shield tree? So power bash doing twice as much damage, half cost, stun and disorient and it is instant cast? Very powerfull skill if is it true.