Interface
One of the biggest changes in Midnight Pre-patch is addon functionality. Blizzard's aim is to remove the advantages “combat-related” addons give, meaning a lot of the addons we’ve come to rely on such as WeakAuras are now a thing of the past.
To replace these crucial addons, Blizzard has developed their own in-game versions of damage meters, a cooldown manager, DMB/BigWigs and improved default raid frames. Unfortunately none of these Blizzard developed alternatives are quite as good as their addon counterparts. Still it's better than nothing and I highly recommend enabling all of them. To do so go into Options > Gameplay > Gameplay Enhancements and enable “Damage Meter”, “Cooldown Manager”, and “Enable Boss Warnings”. Also If you’re like me and you like to have audio cues for important combat events, I recommend going into Options > Accessibility > Audio Assist and checking “Enable Combat Audio Alerts”
Blizzard Raid Frames are mostly fine, the only glaring issue they have right now is the inability to customize how buffs and debuffs are tracked on your frames. Blizzard has shown some leniency recently and hopefully by the time Midnight expansion launches this will be fixed either by Blizzard themselves or through an addon.
Blizzard Cooldown Manager, just like default raid frames, is mostly fine. It’s easy to customize and almost replicates what we’ve been doing with weakauras, you can also get some extra customization through addons like Arc UI.
A must-have addon for me is SenseiClassResourceBar. As mentioned in the Playstyle section, Holy Paladin gameplay revolves around building and spending Holy Power, as well as making gcd-to-gcd decisions. For this to work you have to have a clear and accurate idea of how much Holy Power you have at any given moment, and while the default graphic for Holy Power might look nice, it’s pretty far from practical, which is why it's imperative to have an addon that will show you exactly how much Holy Power you have at a glance.
Plater is another highly recommended addon that everyone should be familiar with at this point. It allows you to customize your nameplates, and it’s one of the few addons we’ve come to rely on that will keep most of its functionality going into Midnight.
Macros
Mouseover macros are the most efficient way of healing. The most basic of mouseover macros look like:
#showtooltip
/cast [@mouseover,exists] Holy Shock; Holy Shock
Trinket Macros:
If you’re swapping between on-use trinkets and you don’t want to update your Avenging Wrath or Avenging Crusader macros every single time, here’s a fix:
/use 13 (On a new line to always use any trinket in the topmost trinket slot)
/use 14 (On a new line to always use any trinket in the bottom-most trinket slot)