As a returning player myself, I was afraid of the amount of catch-up I needed to do in order to play at least at a moderate level. There were so many cards to remember and be on the lookout for during gameplay (I'm from the era of Day of Judgment, so cards like [[Blasphemous Act]] were very, very new to me as a board wipe, for example.)

However, I'm resigned to the fact that I can't ever catch up in terms of card knowledge, which has made me a bit happier as a player. Or at least happy until I get pinned down by Lantern Control or some of the newer combos out there that I probably could have spotted several turns prior and prepared for, but ah well, the beauty of wonder, I guess. XD

And I see Lurrus has been banned. I've never played or played against it, so I'll never get to see how broken it was.