This is the obligatory recap before the great battle.
It's from roughly three months ago, when Li Fan was still confined to his sickbed.
'Xuantian Sword Intent, the trick to sword fighting? What trick is there to sword fighting? Haven't I already taught you the Ruyi Sword Sutra and so many talismanic formations? The Qiankun Flying Dragon Sword can be used too. Use whichever you want. The more you kill, the more adept your hand becomes.'