DarkstarProject/darkstar — pull request #147 by starlightknight (2014-04-19 14:01:17+00:00)
Title: Job Abilities: Implement Futae for NIN

Implemented the Futae Job Ability for NIN. When active, it will consume 2 ninja tools for the next elemental wheel spell in exchange for giving it a 50% boost in damage.

Reference:
http://finalfantasy.wikia.com/wiki/Futae