Basically you want to go in a party of at least 2 to make this effective. Go on your speed GR class. Which ever can do a GR in 2-3 mins. When you hit you max shards
say on discord or type in chat “shards.”
switch to another class, burn through you shards till you get the set item. If you don’t get the items. I recommend keeping at least 10 of each armor and use the “hope of Cain” to upgrade rates.
Necro really only has 3 builds: most revolve around land of the dead. Corpse lance, mages, or thorns.