The cheapest would be to use a katar to double your crit rate. Next you raise your base luk up as high as you can. Assassin can easily do 90luk 90agi 50+str. Every 10luk is 3 crit so with 90 luk you have 27 crit double that with katars and you are now already at 54 base crit. 54 base crit is not enough...now you want to look into gears and cards that can raise your crit rate stuff like solider skeleton card or kobold card. Its very easy to raise your crit rate in this game.
To get double attack with katar you either need sidewinder card,chick hat,snake hat,or make a kagerou alt with shadow warrior to give you lvl 10 double attack. Kagerou also has a skill called empty shadow that can remove reflect off mvps pretty useful to have till genetics can make potions that negate reflect.
Edited by FBKFBKFBK, 19 December 2020 - 03:44 PM.