Shikamaru battles Hidan alone, deep in the forest, and after depleting his chakra, sustains a deep wound. Hidan draws his blood as he lies near death.
Basically, the longer you use it,
the weaker it gets.
Je länger du dieses Jutsu also verwendest,
desto mehr verliert es an Wirkung.
In pratica, più volte la usi e più diventa debole.
Basicamente, quanto mais você 
usa, mais fraco ele fica.
Суть в том, что твой приёмчик...