Flounder

Ghostbuster/Ruin Raider Build via @/JusticeTurtle

How to use it:

Take your lvl 25 dragon and two fodders into the Ghostlight Ruins. Refresh until you get a good starter pack -- preferably a 3-pack with no more than 1 physical attacker. (For reference, physical attackers are Carrioncorn, Nightmare, Tengu Caller, Greybeak Reaper, Infestation Hound, Wraith Hound, Pronghorn Stomper, Wendigo, Tatterwing Carcass, and Shatterbone Vulture.)

If there is an Aer Phantom or Lux Spectre in your starter pack, do NOT haste, just rally. Otherwise, haste, then rally, your lvl25. Use Scratch to build Breath until you can Eliminate your remaining enemies. If Rally wears off, you will need to Rally again or Scratch-Eliminate.

For subsequent packs: haste (unless facing an Aer Phantom or Lux Spectre), rally, then eliminate enemies in this order:

* Carrioncorn, Nightmare, Pronghorn Stomper, or Wendigo.
* Infestation Hound.
* Greybeak Reaper.
* Wraith Hound.
* Tengu Caller.
* Shatterbone Vulture / Tatterwing Carcass.
* Otherworldly Aura / Somber Spirit.
* Longneck Medium.
* Longneck Scholar.
* Lux Spectre / Aer Phantom.

(If using a Water dragon, take out Lux Spectres before Aer Phantoms.)

Three Rallied Scratches will kill all enemies except bosses, Tengu Caller, and the two Longnecks. Rally Eliminate will kill all enemies except bosses. Hasting before each pack (except Aer Phantom/Lux Spectre) will give 5 free breath per match to make up for missed Eliminates.

There is no place in the rhythm to drop in a Sap without giving an enemy an extra turn. However, a Nature Ghostbuster can use Otherworldly Auras, which it resists, as scratching posts to build up health/breath as needed, and a Water Ghostbuster can do the same with Aer Phantoms.