Actions

Fade Away. The grinning cat magically becomes invisible for 1 hour or until it attacks, gradually fading away over the course of its turn. It can choose to leave part of its body visible, such as its tail, its head, or its grinning mouth. Any equipment the cat wears or carries is invisible with it.

Primal Instinct. Your familiar lets out a terrifying roar.
One creature that your familiar can see of your choice within 60ft must make a wisdom saving throw or become Frightened of the familiar until the end of your next turn.

Bonus Actions

Fade Back. The grinning cat becomes visible or makes part of its body visible. Any equipment the cat wears or carries on a visible part of its body also becomes visible.
Grinning Step. The grinning cat teleports, along with any equipment it is wearing or carrying, up to 60 feet to an unoccupied space it can see.