The Grimoire is operated by, Dice Bard has everything you need to play 5e... as long as all you need to play 5e is dice.

Greater Invisibility 4th level illusion

Casting Time: 1 action

Range: Touch

Components: V, S

Duration: Concentration, up to 1 minute

Tags: sorcerer wizard bard level4 illusion

You or a creature you touch becomes invisible until the spell ends. Anything the target is wearing or carrying is invisible as long as it is on the target’s person.

You can find more information on this spell in: PHB.246