It shouldn't be, if you have a team of pokemons that are near the legendary's Pokemon, you should be fine. Also use skills that would do lots of damage to the legendary (weakness), but enough to not get it killed. Try to use conditions on it and wait until it has barely any health. Bring a Pokemon that is fast enough for those that run away. Use pokeballs that benefit your catching, possibly time of day has effects on the success rate of catching it. You can also get one from a friend.
you have to get to dialga which is a ledgendery Pokemon or, you might be able to trade palka from Pokemon pearl to Pokemon diamond.
dialga heatran palkiagiratina azelf mespirituxie cresslia shaymindarkri arceus regiiggiasi have got all these so if you need info on how to catch them edit your quetion i have it on my watchlist
you need to do mean look and then yust throw balls
there is no ledgendery in southern cave
its not
Because it is.
because your dumb
it happens during the story not some sideline. :)
In Pokemon Ruby it's on route 113 and it's very hard to find it is a rare Pokemon so it's really hard to find...
-_- -_-
if you ask me not very hard to defeat him i do recomend to bring a water or grass or ice type pokemon. although if you are talking about recruiting him it is pretty hard to do so
In Firered or Leafgreen. 1.beat the Elite Four.2.and it will randomly appear. .3.if you pick bulbasaur as your starter pokemon. note: Entei only in Firered and Leafgreen and the other ones like D and P transfer or an game shark,action replay.StarDragon674