i did make an Aura to see what main curse that's on the target [curse of shadow, Curse of Recklessness and Curse of Elements then i did put in so i can see if i have to drink a Shadow Power Elixir and / or Greater Arcane Elixir and i did put in so i can keep an eye on the countdown of Demonic Sacrifice and Demonic Armor :)
My adonns i use around this is:
titan panel it is usually on top but you can program it to be on bottom too, where i can see my bagspace and gold amount on the left side and on the top bar i have location, Performance info and Durability info too the left and clock and volume info on the right
Conroc (short for conflict-rotation-optimizer) and i have also its needed warlock addon
conroc warlock there is one for each class :)