Summon Fiend

Spell Level: Level 6

Spell School: Conjuration

Casting Time: 1 action

Range: 90 ft

Components: V, S, M

Materials Needed: humanoid blood inside a ruby vial worth at least 600 gp

Duration: Concentration, up to 1 hour

Castable By: Warlock, Wizard

Description

At Higher Levels

When you cast this spell using a spell slot of 7th level or higher, use the higher level wherever the spell's level appears in the stat block.

Source: Tasha's Cauldron of Everything