Find a pokemon that knows mean look, or teach one it.
I think most bat pokemon and ghost types will learn it.
Boost the pokemon's speed to hell and back, and level it up until it's strong. Try going to victory road and dabbling around in the cave to find a strong bat type. Once the pokemon with scary face is strong enough, wander. Go in between diferrent areas, stepping in between them and checking your pokegear each time. DO NOT FLY. The more you mobve in between two specific areas, the closer they get.
Finally, when entei is in your area, wander in the grass, but make sure to have the mean look pokemon in the front of your group. Fight Entei and use mean look on him right away, it prevents him from running . Wittle Entai down, then ultra ball him half to death.
I think most bat pokemon and ghost types will learn it.
Boost the pokemon's speed to hell and back, and level it up until it's strong. Try going to victory road and dabbling around in the cave to find a strong bat type. Once the pokemon with scary face is strong enough, wander. Go in between diferrent areas, stepping in between them and checking your pokegear each time. DO NOT FLY. The more you mobve in between two specific areas, the closer they get.
Finally, when entei is in your area, wander in the grass, but make sure to have the mean look pokemon in the front of your group. Fight Entei and use mean look on him right away, it prevents him from running . Wittle Entai down, then ultra ball him half to death.