I agree. Ninja's identity is pretty synonymous with trick attack, and it's what gives me the most satisfaction. As a ninja player I want to buff and support other players - potencies being adjusted does not matter to me. If I wanted big personal deeps I would just play samurai. This would be like removing dance partner from dancer and making saber dance do 200 more potency, it just goes against the USP of the class. Removing trick attack also removes the only one minute damage buff in the game - the last thing we need is more homogenous 2 minute buffs that every single class has. I'm sure the game balance can handle on one buff that isn't on a 2 minute cool down.