Necromancer

The undead crystal emitted a familiar pale green glow. Twenty figures began to coalesce behind the Barracks crystal.

Alex saw that ten unique figures had emerged, unlike any undead she had previously summoned. These were new troops, and ten of them appeared at once!

Each figure was gaunt, with dark, sickly-looking skin, resembling a severely malnourished person rather than a typical humanoid form.

Each one was draped in a loose, large black robe that stretched from their heads to their feet, and each held a long black magic staff in their hands.

Upon seeing Alex, the ten figures immediately prostrated themselves.

"Your most devout apostles greet you, my queen."

The remaining twenty undead were ordinary summons, with no liches or zombie titans among them, so Alex didn't pay them much attention.