On the latest Dragonflight Alpha build, Inscription is one of the professions available for testing. One of the new recipes available for testing are the Illusion Parchments! These parchments allow you to pretend to cast spells on players with visuals, which should be great for role-playing purposes.
Illusion Parchment: Aqua Torrent
Casts a torrent of 3 Water Bolt effects on your target.
Illusion Parchment: Arcane Burst
Casts an Arcane Bolt effect on your target.