Invisibility

D&D 2024 spell: Invisibility. Source: Player's Handbook (2024). level 2, school Illusion, casting time 1 action, range Touch, duration Concentration, up to 1...

A creature you touch has the Invisible condition until the spell ends. The spell ends early immediately after the target makes an attack roll, deals damage, or casts a spell.

At Higher Levels

Using a Higher-Level Spell Slot You can target one additional creature for each spell slot level above 2.

Source: Player's Handbook (2024), p. 289 - Licenses and attribution