First u need...

-at least 4 reviever seeds
-a max elixir
-a one room orb
-a drought orb
-a friend bow (required)
-a Lv.90 or up pokemon (required)
-an escape orb (DO NOT USE ON SAME FLOOR THAT YOUr ROBBING!!!!!
-three petrify orbs
first go to magma cavern
next search the 3rd,4th and 5th floor
if u find one attach the friend bow and use the one room orb THEN the drought orb.
steal a item from the shop and he'll call u a thief
constintly keep beating the keleons
if theres too much...use a petrify orb
if u keep on doing this ull get a keleon to join u
use the escape orb on the NEXT floor or u will pay!!!!