Among my water-related abilities, there's one called "Water Release: Suffocation Technique." By adding the skill 'Stick' to water and splashing it on the opponent's face, it clogs up their respiratory system. In reality, though, it doesn't usually lead to death by suffocation. This is because, due to the skill power of 'Stick,' the effect lasts at most 10 seconds, or if I forcefully extend it by consuming extra MP, 11 or 12 seconds tops. With just 10 to 12 seconds, it's unlikely to cause fatal suffocation.
However, it's more than enough to create an opening in an opponent's defense. It's also plenty effective for causing confusion. Just because it lacks killing power doesn't mean it's without tactical potential; in fact, I think it's quite high.