Playing five druids, both as Feral x5 and Resto x5...

With five, you can stand there and Rejuv x5 on whichever toon is lowest.
And then have everyone Swiftmend; any crits will result in AoE Efflorescence on your team.
You can then also Wild Growth the team.

At which point, you are essentially immune to damage... or rather have more raw healing then an average 8-10 players can deal damage.

All of that is insta-casts...
You could do all of those stationary or moving.

You'd need to be stationary for Regrowth or Healing Touch.
But you can also Lifebloom, if anything is focused, without needing to stop.
Or Nature's Swiftness plus a non-instant cast, likely on round-robin.




I'd imagine three healers would play similar to a Holy Paladin, at least when boxed.
The DPS would do their thing.
And the healers (any type), would basically sit there and do their healing.

AoE heals, or intelligent healing that goes to whoever needs it the most, are the easiest to use.
But you can click on Grid/Healbot/Vuhdo frames fairly well.

The Pally is strong, in that you can manually control heals (and any other healer too) when its slower/easier.
But you can set a focus with a click (or in my case, scroll wheel up) at which point, the keys which are spammed for the DPS also heal the focus.
You could likely set something similar up for other heals.

The key will be finding a healing rotation that can be macro'd, so you don't have to manage it much.
As you'll be using your mouse to frequently select targets and/or drive the main for the others to follow.