Also, according to the text in-game, your first arena deck gets skeletons. Mine got (as I mentioned) catapults.
The T500 decks all have some kind of uber-buffing due to the skill points, right? So If I am lucky enough to get Oracle cards that support my strategy, and I can get that deck into the T500, I guess I need to just leave it alone, right? Because if I modify it at all I get new random Oracle cards?
Not trying to be a dumbass, but the in-game instructions are nebulous at best, and I don't have all day to search through hundreds of posts on this topic.