Cascoon in Emerald.
Cascoon appears in 1 place in Pokemon Emerald. The best odds are Petalburg Woods (walking in grass or caves, 10% at level 5).
Where to find Cascoon
odds are the game's slot tables| Area | How | Level | Odds |
|---|---|---|---|
| Petalburg Woods | Walking in grass or caves | 5 | 10% |
Evolution
5 stages
Wurmple
Silcoon
Beautifly
Cascoon
DustoxEvolves into Dustox at level 10.
Evolve now or wait
from the game's learnsets and the relearner ruleCascoon evolves at level 10. Nothing is lost by evolving straight away: every move Cascoon learns after that, Dustox learns too. Dustox learns 8 moves of its own after that: Gust at 13, Protect at 17, Moonlight at 20, Psybeam at 24, Whirlwind at 27, Light Screen at 31, Silver Wind at 34, Toxic at 38.
Rule the game applies: the Move Relearner in Fallarbor Town (he takes a Heart Scale) teaches only the level-up moves of the form you hand him, at or below its current level. Delaying an evolution costs the evolved form's higher base stats for every level you wait; a move you barely use is not worth that.