I've liked having Baneslayer Angel in my cube but I recently replaced her with Lyra Dawnbringer hoping she'd be better but then they printed Boon-Bringer Valkyrie. Not crazy stronger, but giving one of your creatures a combat bonus the turn she comes down I'm hoping lets the card be useful in more situations.

As this is an unpowered cube, the kicker part of Thieving Skydiver often didn't come up, except against an artifact deck where it felt off that blue got artifact removal. Against other decks it usually was just a 2/1 flyer for 2. Faerie Mastermind on the other hand has flash which makes it possible to hold up interaction and play on your opponent's end step. It also works well with cards that cause your opponent to draw such as Vendilion Clique and is better against other blue decks with lots of card draw. Not a huge fan of the art but at least it pays respects to a real pro player.

Seeing people talk about Pile On caused me to add Lethal Scheme. Hero's Downfall was usually not the best removal but being unconditional and being able to kill planeswalkers meant it was still good in a lot of situations. Lethal Schemes has all those upsides but if you have even a single creature is way better.

Thinking about adding other cards from MOM, but none made the cut for this update.