For this to work, you need:
- You Pokemon knowing Thief/Covet
- Compoundeyes victim (level should be as low as possible)
- Cut User
- Access to Route 13
- Sweet Scent user (optional)
Steps:
- Wait for Chansey swarm
- Kill your Compundeyes user (Use super-rod on the waters and have it battle a Lv40 Pokemon.) Optional, but more convenient.
- Put Compuneyes user as the first member of your party and Theif/Covet user second.
- Go to the grass in Route 13 and encounter lots wild Pokemon there.
Now with the swarm, you'll encounter Chanseys much more often. And because of your first pokemon, for about every 2 chanseys you've encountered, one of them will be holding a Lucky Egg! Now collect as much as you want!
Oh yeah in the 5th gen games, to get more Lucky Egg (since you should have one along the way, you can only Encounter Happiny in White among the whole evolutionary line, but even so, it's only on the white forest. You can do the above method, but you'll only have 5% chance of encountering a happiny with lucky egg. Oh, and you can't transfer those lucky egg from your 4th gen games either.
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