...oh man oh man, where do I begin?
~The 'line' holo pattern. There is absolutely nothing special about it, and on top of that it is incredibly distracting. There's nothing wrong with the galaxy holo pattern, and it does emphasize the Pokemon quite a bit. Go back to that. (I am aware that the US cards are not allowed to have the same foil patterns used on Japan's EXs, due to copyright law, but at the very least we can go back to the galaxy holo for normal rares and ACE SPECs.)
~Don't make Pokemon-EX twice as strong as their normal counterparts. Gen 3 did it right with the EXs: have them noticeably powerful than the others, BUT not by a large margin AND have them be incompatible (or weak) to other effects. RSE bloc was full of counter-EX cards, and even EX themselves were incompatible with many common cards.
~Don't dumb down the card game. Allegedly it's to help people understand the game more, but I have gotten more stupid rulings questions now than I have ever before.
~Bring back the rulebook and re-do it completely rather than copy/pasting the older edition without editing it whatsoever. Explain everything in as much detail as possible, including explaining how the game state works. YGO rulebooks are actually quite good at doing this.
~Make basics weaker than evolutions, EX or otherwise. (We can talk about fixing Rare Candy later.)
~Make all cards in a set playable to some degree. This problem could potentially rectify itself if the above changes are made, or it can be part of that change. DP Legends Awakened and DP Stormfront are good examples of sets that do this: there are cards certainly stronger than others, for sure, but each one is strong in its own right. (Older DP sets do this as well.)
~Bring back league promos that are actually playable. The days of POP packs, and later the days when Uxie &c were given out, were some of the glory days of the TCG league system - at least when I was around. (And while you're at it, bring back the premier trainer system back.)
~Abolish PTCGO completely and devote its resources to other areas, like ones that actually matter (prize support is a big one).
~NO MORE FIRST-TURN TRAINERS
~Standardize pull-rates for boxes, and make them more favorable. Legends Awakened boxes had very good pull rates, and although so did Boundaries Crossed and Noble Victories in recent years, they aren't as good in comparison. Buying a box is not a "lottery" like buying individual packs - it is an investment, no matter what others may think.
~Better quality control. Miscuts, warping, and strange pull rates abound. BW1's lack of care (and later in Dragons Exalted) for how cards were packaged was the beginning of the end.
~I'd like them to lower the cost of packs and prereleases and such, but this is more an issue with inflation than anything else, so I'll leave this untouched for now.
~Start giving out good-quality sleeves at pre-releases again, instead of deckboxes. I have still hoarded all my PR sleeves because of this, and when staffing tourneys I decline the deckbox, because deckboxes are of virtually no use to me. I know the Professor sleeves are fairly good, but those are available only to a select few.
~Have a way to purchase packets of basic Energy, instead of from starter decks (because experienced players won't want much else in the decks) or the Professor store (because, again, select few).
Things I liked about BW-era:
~Reverse holos (non-Plasma)
~ACE SPEC concept (not necessarily the ACE SPEC effects themselves)
~Level Ball, Heavy Ball, and N
Remember, PCL. Remember from what heights you have fallen, and aspire to be what you once were.
We are a forgiving fanbase. If you show that you care for us, if only a little bit, we will take it to heart.