Blizzard Assisted

Recommended for Devourer. Highlights the spell Blizzard's Assisted Combat suggests next, the one rotation advice the game still lets an addon read in Midnight combat; it waits while you cast or channel Void Ray. Alongside it, reminders for what the assistant leaves to you: Void Metamorphosis, The Hunt and Voidblade whenever they are ready in combat, Disrupt on an interruptible cast, and Blur whenever it is ready in combat. Enemy casts are hidden in combat, so Disrupt lights only where the game shows them; health is hidden on Retail, so when to use Blur is your call.

Adapted from SimulationCraft model of Blizzard Assisted Combat: Devourer, Blizzard API documentation: C_AssistedCombat (12.1.5.70529), MaxDps Demon Hunter (Midnight).

In game: /rm set devourer chooses it by hand; it loads only for its edition and class, and is listed only for the specializations it is for.