A prospecting misson for one will occasionally appear on the job bulliten board.
Or you can cheat with this:
J17=11J07=5+SSN3C
3PSSR7%56=%WC9+J0
Join my search for the Secret Slab!
Client: Alakazam
Objective: Prospect with Alakazam
Place: Steam Cave 7F
Restrictions: None
Difficulty: S (90)
Reward: Joy Ribbon (you still keep the Secret Slab)
I actually got this off the Job Bulletin Board, so don't think I got this off a website.
Trust me, I tried looking for one.
Best of luck to you!
pickle
the secret slab lets you find certain legendary Pokemon in cetain floors of a dungeon. for example, with a secret slab you can find darkrai on floor 3 of the miracle sea.
Recruit from Dark Crater or Mystery Part or Secret Slab
http://apointlessplace.net/wms/wmgenerate.html create a code to get it i did.
It helps you get all of the legendary pokemon.
They help you recruit all the legendaries.
yes,b18f
yes on the 10 floor of the spacail rift with secret slab
latias is in Sky Fissure 10F and Joy Cape B10F but you must have Secret Slab or Enigma Part in your treasure bag
look it up on google ("pokemon explorers of darkness secret slab") and enter it on the main menu
It´s a Heatran (Lv. 49).The Dungeon has 20 floors and Moltres is also to be found there (only in Explorers of Sky) but only if you have Secret Slab with you.Fond this in Pokewiki:PKF&+X-H+M2SHW65J9W0=TTC0PKH+0YPY+Should be for the Secret Slab. :P
Obtain a mission that allows or has a reward that involves getting a secret slab.