Cameruptite is Delta Episode only even in OR
Also to prevent this from being a one-liner,
swinn715, take Bouncy the Spoink.
Bouncy is very, well, bouncy, and must continue doing it to survive. Bouncy was once attacked by a Seviper and has a constant fear of both not bouncing and Poison-types as a result of the encounter. As such, never battle a Poison-type unless you are the last Pokémon in the party, and never evolve into Grumpig, as that would mean stopping bouncing (Eviolite is allowed). Learn Bounce ASAP, never forget it, and use it to start off every battle. Finally, solo Glacia.
To recap:
-Capture Spoink on Jagged Pass
-Never battle a Poison-type unless last unfainted party member
-Never evolve
-Lead every battle with Bounce
-Solo Glacia
EDIT: Just realized Bounce was level 50 (wtf) so I guess that makes it easier on you until really like E4