Yes, i can 1 hit mob in Panther Killing witch is 1 sec cooldown. while rapid fire 1 hit too but 4.3 sec cooldown but overkill XD should i try stronger mobs so rapid fire is well used?
If you want to train with sword, this is what i suggest.
If you aren't Strong enough to use Sword of kings, replace it with tornado cut and for final you can put lightning jab or earth tremor.
You want twincore blades on for the +2 crit and chance to shoot TBA when poking.
If you have soul discharge 2+ you shouldn't need MP pots.
You want hurt transfer V to let your summon absorb as much dmg as possible to lessen repairs if you can afford.
For farming, with a finesse using swordsman you can put pk first, tba in 0 atk, hail storm in common when farming with weak mobs. With stronger mobs just use tba in first and hail storm in 0 atk or common.
with no finnese just use TBA/panther killing depending on the strenght of mobs.