XIETIAN
A lot of people seeming to forget that the description said he can control the sword using mana, the sword that his clone just dropped.
After years of watching anime and reading manga/novels there can only be 3 outcomes here. - Lilith appears as he is kneeling with his second counting before the enemy decapitates him - Bai Zemin goes in a daze and unlocks hidden power/memories - Bai Zemin takes the hit but in turn fatally wounds her Or Non specified options - Bai Zemin kisses her and she runs away - Author just punches his viewers in the face with something never before seen