Is saying that the quote isn't something Jack would say people making fun of the dub or a result of inconsistency in tone/character as well as it having something against summon chants. (And only most of the time)
Because from my short trek though the wiki it seems pretty in line with him. And even being an alternate universe and thus a different character I think it'd be remiss to just flat ignore out the more recent dubbed portrayal. I'll give a pass on all the possible leaked information and his duel links protrayal/quotes since it's unconfirmed and easy enough to miss/forget respectively.
That is true. But his "Ace" card could be Volcanic Queen and some level rewards could include Volcanic Scattershot, Volcanic Counter, Solar Flare Dragon, and Blaze-Accelerator Reload, Volcanic Armor. I know some of the cards I mention O'Brien(Axel Brodie for you Dubbed people) doesn't have in his deck but they are good cards for a volcanic deck.
There's a reason why none of those cards are available in Duel Links...
Volcanic Queen and Volcanic Slicer could happen eventually, but that's about it. There's no way Queen would be his ace over Doomfire. At best, he'd get a skill that adds Doomfire, Blaze Accelerator and Tri-Blaze Accelerator to his deck. He's not happening. Even Jim's got a better chance.