Hi ive tried killing dark lord clone with some a morían basket and heartstoppers but I still do miss or low dmg on him My stats are mostly on Int and I have 4 base luk and dex so I got some equipos for Int and a skanda 45 att but still can kill him With the equipos my stats are 29 dex and 31 on luk
Your damage should be okay you just need a stronger accuracy pot. Maple pop gives 100 accuracy boost for 1min. Farm like ~30 from Nightmare mobs in Haunted House. Refer to the link for the location. https://bbb.hidden-street.net/monster/nightmare
I never purchased them before so I'm not too sure on the price. I believe they should be similar to heartstopper price? Like ~500k each. I'm quite surprised to hear that you are heavily HP washing a NL in the absence of any supportive alt characters.
Then you will need more luk equips. Luk bathrobe, earring etc. Also some gear with weapon attack like gloves, capes, shoe.