I use 2 help harm macros as disc

1: /cast [harm] Dispel Magic; [help] Purify

2: /cast [harm] Dark Archangel; [help] Archangel

The 2nd one is just to free up a keybinding slot, so i never have to change my bars each game i pick either. the first one is a purge / dispel in 1 button macro.

Other people just have things like shadowmend and smite in help / harm macros, I know Hydramist does that, but the rest is personal preference!