I know that there are 2 super rare ultra powerful Pokemon in the whole entire Pokemon world.Those Pokemon are Raquaza and Arceus, but what i know is that RAQUAZA is by far the most and i mean the most powerful ultra legendary in the entire Pokemon world.
Arceus
Caterpie
Arceus is the most powerful, with a base stat total of 720, the current highest. sds ooo
The most powerful water type is Suicune.
The strongest (most powerful) Pokemon is of course rayquaza.
Kyogre.
Arceus
mewtwo
Mew
NO. Only ash got that as a choice. You have to catch it in the viridian forest, but it's rare
Yes Ditto is the most powerful unstoppable at lvl 90-100