Advantages come from this techniques lethality. You one are throwing several kunai at the target that if left undefended against could damage and even kill the target. If the target defends via physical means the pouches would scatter paper bombs that would blow the target to bits. You could even if possible, refrain from throwing the final kunai and just saturate the battlefield in paper bombs."Diversion indeed."
Rank: D
Type: Attack
Range: Short-Mid
Chakra Cost: 10
Damage Points: 20
Description: The user will hurl kunai with pouches attached at their target. Upon impact, the pouches explode, releasing small explosive notes. Due to the large number of kunai thrown, a shower of notes will rain down on the target. The user will then throw one final kunai with an active explosive note at the target. It will begin to burn, and by igniting the falling smaller notes it will cause a gigantic explosion.
"A more weapon based technique, where you will launch several kunai towards the opponent. These kunai are fitted with pouches, which explode when close to the opponent and release a large number of explosive notes that rain down upon the opponent. A last kunai is thrown, with an active explosive note on it, which burns, and ignites all the others, causing a massive explosion. Quite simple, yet useful and somehow, deadly as well."
Disadvantages would be targets that defend via water and wind style jutsu. The water style would wash away paper tags or if the user surrounds themselves in a water prison nullify the flames caused by the explosion. Wind style jutsu could possibly blow the tags and kunai back at you causing you to get caught up in your own explosion.