1st:Lugia
Kyogre
the powerfulest transformer is the Fallen however when optimus primr gets upgraded he's then the powerfulest transformer.
its zekrom
well theres bakugan trap bakugan trap has infinity G's(the square bakugan )
powerfully, powerfulest
it is maxis Helios with 3700 gs
Only "powerfull" is not an adequate characteristic for a chemicl compound; you must add most toxic, most explosive, most acid, etc.
there is not really a "most powerful" card in yugioh. it all depends on the circumstance and how you use it.
The second and most recent Bakugan series is called Bakugan Battle Brawlers: New Vestroia.
I think Nicholas A Atallian has a record because he has about 200 bakugan
It is Naga.