In Slateport City, you'll have to go to a museum in order to finish an errand. Talk to one of the Team Magma members there, and he'll give you the TM Thief.
I think you cant catch a Pokemon that learns thief, without the use of the TM. Alot of Pokemon can learn Thief through TM, but i don't know where to find the TM in the games. I did, but i fogort, sorry. Maybe check bulbapedia?
Pokemon ruby's version IS Pokemon ruby.
lv 1
the quick claw is in the Pokemon trainers school talk to the theacher and also you can find them in wild sandrews (steal them by covet of thief) mmm nothing more
Arceus is not possible to find in Pokemon Ruby. It was released in 2007 with Pokemon Diamond and Pearl
You can find all kinds of pokemon.
You can't in ruby.
In the game Pokemon ruby destiny
Piplup is not found in Ruby.. Piplup wasn't created when they made Pokemon Ruby.
You can't find raikou in ruby.
First of all, please improve your spelling. Second, you don't FIND the Sapphire, or Ruby. There's Pokemon Sapphire AND Ruby.
Find pokemon!