(also for ruby) FIND A LVL 40 WAILMER
If your leveling up a wailmor to lvl40 for wailord I suggest you just go to the pond on the hill next to the berry planters house. I found 2 lvl40 wailmer on my first two tries.
More tricks, tips and cheats for this game are right here - Pokemon Sapphire cheats
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