Natsu has a final showdown with Jackal, who turns himself into a human bomb at one point! Later, the other teams arrive too late, finding the other former members they're meant to protect already murdered by Tartaros...
It's a weapon that would destroy 
all magic over the whole continent.
إنّه سلاحٌ من شأنه أن يدمّر كلّ السّحر الموجود على وجه القارّة