SFS Standard Selective Invisibility [two-actions] Spell 3

Traditions arcane, occult
Range 500 feet
Targets 1 willing creature touched and one within range
Duration 1 minute

A willing creature you touch becomes invisible to everyone except a second target within the spell's range. If the invisible creature uses a hostile action against anyone who isn't the target that can see them, the spell ends after that hostile action is completed.

Heightened (5th) You can make up to 6 willing creatures within 30 feet invisible, but they all must have the same target.