Where to catch a Scizor on Pokemon Emerald version?

You can't catch Scizor in Pokemon Emerald. It was introduced in Generation III, but only in the Ruby and Sapphire games.

However, you can evolve Scyther into Scizor in Emerald. To do this:

1. Catch a Scyther: You can find Scyther in the Jagged Pass area.

2. Obtain a Metal Coat: This item can be obtained by trading with another player or by finding it in the Hidden Grotto (the location varies).

3. Trade Scyther the Metal Coat: Once you have the Metal Coat, trade it to your Scyther and it will evolve into Scizor.

Remember that you can only evolve one Pokemon at a time using a Metal Coat.