Deletion of Battle trance

Comment: I tagged this article with issues two years ago, wondering if the single-source problem was the result of lazy editing rather than the article's being a vehicle for self-promotion. The article hasn't been improved, and by now it is reasonable to assume that the reason why is that there isn't any significant treatment of this concept. I have been unable to find any. In the parlance, this article fails the |notability guideline, the topic not having received significant coverage in |reliable secondary sources
Stance: delete
Cited policy: Wikipedia:Notability (WP:N||WP:RS)