More Warlock spells from 4E:
Armor of Agathys
You surround yourself in a sheath of black ice from a dark and doleful realm. It protects you from attack and radiates fierce cold
Flames of Phlegethos
Rivulets of clinging liquid fire appear and cascade over your target. Anything that is flammable ignites at once and burns long after the streams of magic fire fade away
Hunger of Hadar
You create a zone of complete, impermeable darkness filled with flying, fluttering, fanged shadows. The shadows rend at the very life force of creatures caught within
Tendrils of Thuban
From the frozen emerald seas under the star Thuban, you call forth dozens of glimmering green tentacles. Reaching down from overhead, they seize your enemies, draining the heat from their bodies and holding them immobile
Minions of Malbolge
You bring forth fire in the shape of small, infernal imps from Malbolge, sixth of the Nine Hells. They hover close around you and hurl themselves upon any enemy that dares to approach, searing with their fiery touch and driving foes away
Wrath of Acamar
You fire a ray of crackling black energy at your enemy. At its touch, he is instantly hurled headlong into the soul-draining depths of Acamar, a dark and distant star
Tartarean Tomb
You create a battering storm of rune-scribed black iron plates around your foe. As they whirl and strike, they quickly assemble into a coffinlike prison of iron and shadow
Curse of the Fey King
You invoke the power of a mighty fey spirit. A shimmering emerald coil of eldritch power disrupts your foe and steals from him the luck of his next few moments. It’s yours if you want it
Doom of Delban
A single slanting shaft of frigid starlight strikes your enemy from above and clings to him. Under its unbearable touch, flesh becomes white ice and steel shatters like glass, but you must pay a price to keep Delban’s deadly light focused on your foes
I also picked a ton of other spells with less "X of Y" names that evoke beings or places