Event Arceus- Level 100 (JAP)
This Arceus enables a feature in the Ruins of Alph that can get you one of three Pokemon in-game: Giritina Lvl.1, Dialga Lvl.1, or Palkia Lvl.1 from the Hoenn Champion Cynthia. All you have to do is enter the research house in the Ruins of Alph with the Event Arceus first in your party. Then let the event do itself(except for the walking parts, but it's like 5 steps, Lol) NO OTHER ARCEUS WILL WORK, JUST THIS ONE(Or if you have an Event Arceus you obtained yourself, which is extremely rare)
AND
Event Kyogre- Level 50, Event at Embedded Tower
I obtained this Kyogre at Level 50 at Embedded Tower in-game. You have to beat both Kanto and Johto to aquire it, but only in Heart Gold. If you trade my Heart Gold Kyogre over to a Soul Silver game after you have obtained Groudon in Soul Silver(From Embedded Tower), you can talk to Proffesor Oak, and he gives you the Jade Orb. With it, you can now recieve the Event Rayquaza at Embedded Tower. {YOU NEED ROCK CLIMB TO OBTAIN THESE POKEMON, AND THAT'S WHY I AM TRADING THEM TO YOU BECAUSE ROCK CLIMB COMES LATER IN THE GAME}
These both interest me...Tell me if they're still available.