Need some Suggestions....

[Monkey D. Luffy]

Maybe something along the lines of conjuring a number of humanoid shadows warriors that converge and latch on to an enemy, then explode like an energy blast once they've clung to the target.

Alternatively, it could be a move that would require Debuff and heavy downsides. It would surround the vicinity in complete darkness, and not only cut off the enemy's sense of sight, but the senses of hearing and smell as well.