Deoxys...
you cant the only legendarys are regirock, regice, registeel, latias or in your case latios and groudon and the harder to catch rayquaza and deoxys
The difference is that the Pokemon that have different color (a.k.a the SHINY) Pokemon are very hard to encounter because their is a 1/8192 chance to encounter that Pokemon as a shiny. Their really isn't a difference between them. The only difference is that they are harder to encounter.
Pokemon Soul Silver is not harder than Heart Gold because they are the same game but they have different pokemon.
Rayquaza is at the top of Sky Tower, which is only in Emerald Version. You can only battle it on the 2nd visit to Sky Tower (as on the first visit, it goes to calm Kyogre and Groudon), and on the 2nd visit it's harder to go throgh the tower.
Sir Edmund Hillary and his team had a lot of difficulties on their way up Mt Everest it was harder to breath and got harder and harder to climb.
Mewtwo is harder solely for the fact he is level 70 while Deoxys is only level 30. Mewtwo also has safeguard and recover, which can thwart your catching strategy easily. If you want to judge for yourself: Deoxys Lv. 30 Mewtwo level 70 Knock off (DRK) Swift (NRM) Spikes (GRD) Psychic (PSY) Psychic (PSY) Safeguard (NRM) Snatch (DRK) Recover (NRM)
pokemon white is hareder than pokemon black
After defeating him in the galactic HQ after the seventh gym, Cyrus will give you a master ball. Do not use your master ball on dialga! Instead, use it on Cresselia or another harder Pokemon to catch.
only when you get the national pokedex which you get when you have caught 60 pokemon. then go to prof. oak and he will giv u the dex. THEN the elite 4 gets harder
catch em yourself.work harder.
try harder
PWT