Serious question, why isn’t Library banned in casual?
[[Library of Alexandria]] is known as the 10th piece of power for a reason. Having it on turn one (especially while being on the draw) almost guarantees that you’ll be drowning your opponent in card advantage the rest of the game if it’s not removed. I’m not sure if WOTC is monitoring this card or if they overlooked it being legal in Brawl when it came out in the SOS mystical archive.
If a control/tempo player (ie Nashi, Raffine, Rusko) is drawing with Library from t1, I usually just concede because I know the game is not going to go in my favor. This goes for competitive too, but I don’t think it should be banned in competitive because the swing-y nature of the card fits with other cards in the format (ie Mana Drain and Channel). Thoughts?