I was wondering, does anyone have any advice for catching Entei/Raikou? When I got into battle I used a move to put it to sleep immediately, but even then it still managed to run away it's first turn. Is using Quick Ball the best for catching them?
Baton Pass Umbreon + Thunder Wave Electrode/Sleep move or Thunder Wave Mr. Mime.
Open with Umbreon using Mean Look to stop running, then BP to Electrode or Mr. Mime to block the inevitable Roar with Soundproof. Next turn use the status move and proceed to weaken/capture like any other legendary.
Note that Umbreon does need to be faster than Entei and Raikou for this to work, so will need to be a high level. Or holding a Quick Claw. Only needs to activate the first turn, since Riar forces them to go last on the second.
'Success rates are but scientific theory. A brave heart will defy any odds!' 'Don't beg for things, do it yourself or else you won't get anything.'
Save , use master ball on one of them if it has decent stats/nature keep it. if not but you still want it reset the game and start the battle with crobat. it can learn mean look and hypnosis so as long as you use hypnosis before it uses roar everything is fine. If you however get roared before it sleeps be sure to have only pokemon with mean look/arena trap and high speed in your team that way if you get roared something that can take crobat's place will come out for sure