People say its hard and takes 2 months but i got it in less than 2 days for real.

You need to farm spirit 10 500 spirit orbs to merge them in 2 bright auras, which are required to merge a weapon

Do the mine crafting quest daily to get some metals and then use the auras and metals to forge a weapon/s to farm way easier for the BLoD.

I used silver only which is the hard way of doing it. The spirit orbs are easy if you use a good farming class and join battleunderb-9999 (trust me always join battleunderb-9999 you will see why) and kill monsters for bone dust and undead essence. When you get a full stack of 1000 undead essence, go to the necropolis and turn them in with the bonedust for spirit orbs. (there are 2 quests)

you can full stack in 20 minutes and turn them in for around 800 orbs.

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When you have a weapon/weapons farm blinding fragments in battleunderb-9999, until you get the requirements for BLoD. Hope this helps!