Lance845 wrote:No. By that logic it does not work that way.
What I was saying is that the effect of the ability does not make it a psychic power. Being a psychic power makes it a psychic power. Tau do not have psychic powers. Some tau units have their own unique special abilities. Marker lights is their army wide special ability. If you go to the first page of the index/rules for the codex when they explain the SEPT/HIVE FLEET/etc... keyword. On that page they explain army wide rules. For Nids it's synapse and
sitw. For tau its markerlights. For
AM it's orders.
The only argument I am making is that it is a bad analogy for someone to say "I cannot stop tau markerlights why should they be able to stop my psychic powers?" Answer, because
ML are not psychic powers.
Ok, then we are just arguing different things.
My point is that no army needs psychic powers if it can get similar effects elsewhere. The psychic phase is by no means an essential part of the game, I have faced many armies that did not make use of it at all over the course of 8th, despite their codex having psykers.