UPDATE: Unfortunately as all probably already knew:
The premium currency is of course not client side, so I am unable to do anything with it with my limited knowledge, however I do believe I found the values for the attribute orbs, will be beginning to test on that and see if any changes will take.
I will then be working on XP for game level, as even in offline mode it seems to still be counting XP. Standby for more on that.
igromanru, I havent the slighest idea on your progress but feel free to share, I will help out as much as I can.
Hopefully someone much smarter than I will be able to figure out a work around for the premium currency, although I do not want to give anyone false hope as this is usually the case with these types of games, it may never be a possibility.
For anyone else that may be concerned this is cheating online, I assure you I myself am only setting out to hopefully reduce the paywall gap, and maybe cut down on grind times. As Yu-Gi-Oh is a card game, it is also very much a game of skill, knowing how to build a proper deck along with a deep understanding of the mechanics/combos is VERY important, and in no shape form or fashion will this have any impact on actual gameplay against others.
Much like with Legacy of the Duelist, giving yourself more currency only allows you to obtain these cards, not teach you how to use them!
Thank you all for your interest, Ill see what my limited experience can do!