"Items of Necromancers, serve as mediums for summoning. With the Soul-Summoning Skull, Necromancers can summon additional undead creatures," Duo Duo explained.
Nie Yan suddenly realized, with a summoning medium, a Necromancer could summon two, or even more than two undead creatures. With them, the Necromancers could form a large undead army. Such items would naturally be sought after, and if they were rare, they would be even more valuable. Furthermore, the Soul-Summoning Skull that Nie Yan had obtained was of relatively high quality.
Duo Duo certainly wasn't offering a false price—Nie Yan thought for a moment, selling the Soul-Summoning Skull to Duo Duo would indeed be profitable, but such an item was too precious to just sell for money. It would be best to exchange it for some equipment.
"Do you have any good items to exchange with me?" Nie Yan asked. With Fallen Angel being such a large guild, they surely wouldn't lack Sub Legendary gear.