1)you need a lot of invoutery for this mission
there is the
loyal spirit orb
so yea you need 8 slots but just in case keep it 10 or 9
2) about 1-2 weeks max
3)find a bot that has soul searching quest it s the fastest ( just google it)
Thanks for the answers people.
But I just found something really shocking.
I left my bot with Soul Searching bot to get Spirit orbs.
Normally I get over 1.5K Spirit orbs overnight.
But, I found that it had stopped on 162, however bot was working.
Then I found that the "Undead Essence" was neither dropping from any monster nor from the quest itself.
Probably its a counter-measure against bots that EA said they were working on. O.O
EA included a counter-measure in their system which stops the drop of Undead Essence from both Monsters and Quest when it detect us botting.
P.S. I was in server Artix.
Maybe you had accidentally turned on "Get All Drops" and it had picked up an extra item which resulted in a full inventory? Or maybe you hit the max stack of 1000. If AE can detect botting, I doubt they'll just turn off drops to troll botters. If they can detect a bot, they'd ban you instead.
So we beat on, boats against the current, borne back ceaselessly into the past.