Ancient Caustic Sewers

Ancient Caustic Sewers, also known as ACS and DCS, is a continuation dungeon of Caustic Sewers. The green water in this dungeon can poison a water, flying, or levitating Pokémon, so bringing a Pokémon with Refresh will help you throughout this dungeon.

Low Floors
The dungeon is light green in color and has light green water.

Pokémon
''Pokémon in bold are recruitable. Please visit the Recruitable Pokemon page for more information.''

Low Floors

 * Dustox
 * Raticate
 * Gengar
 * Venomoth
 * Arbok
 * Ariados
 * Golbat
 * Crobat
 * Nidoqueen
 * Nidoking
 * Muk
 * Serviper
 * Reniculus
 * Dustox
 * Solosis (Day and Night)
 * Duosion
 * Skuntank
 * Ferrothorn
 * Ferroseed (Day and Night)
 * Brongzong
 * Garbodor

Secret Room
In Ancient Caustic Sewers, Secret Rooms contain 2 Deluxe Boxes.

Items:

 * Relic Vase

(This is likely incomplete, feel free to add onto it).
 * Revival Herb
 * TM Sludgewave

Dungeon Objective
Get to the end.

Tips
Bring a Pokémon with Refresh.

There is a kecleon shop at 12f

= = Trivia ==

This is the highest level dungeon in tanren underground.