Instructions
Go to Sangdem Town and enter the house in front of the Pokemon Center. Speak to the little girl in the house. Each day, she tells you about a different type of Pokemon that is swarming in the forest. The Pokemon that appears is random. Wait for her to tell you that Absol is swarming.
Head to Pastoria City and go through the eastern exit. Walk to Route 213.
Walk around in the grass. At random, a Pokemon battle occurs. There is a 40 percent chance that an Absol will appear to fight you.
Damage the Absol in any way possible. When Absol's HP bar is red, toss a Poke Ball to capture it.