It may be worth noting that Ghetsis speaking in English was a reference to Viz's English version of the Special manga. Pokemore had previously taken a look at it in his little blog commentary, and for some reason, he took a liking to that particular line (in the link, he even repeats what Ghetsis says, spelling it out mostly in hiragana: まい ねーむ いず ゲーチス…、ゲーチス おぶ ちーむ ぷらずま…。).
Shall we, the Nobunaga expeditionary force in foreign lands, attack yonder castle, for a start? We shall use it as headquarters to invade Isshu and take control of it...Nobunaga-sama, someone is coming toward us!Leave this to me! I'll put this battle to an end in the blink of an eye!ARE YOU KIDDING MEEE!!?The great dream of Lord Nobunaga...conquer the whole world! I, Zekrom, will dedicate myself to it!
Zekrom says "Tenka Fubu", referring to this.Is that so?dashThis Team Plasma Castle is the symbol itself of Isshu's revolution...So, Touko-chan...if you want to stop me, hurry up and come here...!We have a problem, N-sama!Tsk...and so, Touko-chan is finally here!?The Nobunaga Army is here to attack us!!War no good! Set pokémons free!All the Seven Sages have been caught!!UUUUH!!?CHARGE~!!!waaaah~WOAAAH~~!!"My name is Geechisu...Geechisu of Team Plasma..." speaking in English...I've caught the leader of the enemies!Zekrom, always on the winner's side.WHAAAAAAT!!?It can't be helped, I must fight against them with Zekrom!