Cursed Orb

The Cursed Orb is a Hard Mode summoning item that is used to summon The Necra. It can be crafted at any time in Hard Mode, but if used before the Moon Lord is defeated it will summon a Dungeon Guardian instead as a penalty. It looks like a glowing, purple, circular crystal with deposits of Cursed Flame and Ichor inside.

Crafting

 * 20 Souls of Night
 * 1 Demonite/Crimtane Bar
 * 5 Cursed Flame/Ichor

Trivia

 * It was about time The Necra had a better summoning method, so here it is.