no,there is only 1 legedery pokemon.
Legedaries are not found in the sky pillar.
Kyogre and latias. regi-rock, regi-ice, regi-steel
There is not one in sapphire. But there is a sky piller
rayquaza is in sky piller
The Sky Piller is a place where you can find Rayquaza. In Sapphire and Ruby the Sky Piller is not accesible until the champion has been defeated. In Emerald it can be accesed after you awaken Rayquaza and it calms Kyogre and Groudon.
complete the elite 4 and go to sky piller near pasificlog complete the elite 4 and go to sky piller near pasificlog
(x24) rayqaza is at sky piller on rout 131
Use your mach bike and zoom past them.
At sky piller. on the top floor is Rayquaza. - Mr. Seidschlag
If you have Ruby and Sapphire, you can go up the Sky Piller after you defeat Wallace. Otherwise, you have to trade is by trading from Ruby, Sapphire or Emerald.
on route 131
There's no key.