自分's swordsmanship is like a Snake's Den Within Quick Sand. At first, it looks nothing special, but when 相手 finds all of their attacks missing & all of 自分's attacks hitting their mark, they will be confused, as 自分's not particularly strong nor fast, making 相手 feel like they're falling into quick sand. As they fall further, metaphorical snakes bite into 相手, their venom(fatigue) weakening 相手