Lurrus of the Dream-Den obviously disincentivizes high converted mana costs in most aggressive white decks, but its possible that Lurrus is just tricking white aggressive players into deckbuilding mistakes
Yubel came back as a Fusion card - Yubel, The Loving Defender Forever - along with a load of support
A little tidbit about this card that is quite funny is that this is one of only two cards in the game that allow a player to repeat Battle Phases, with the other card being Weather Report
The Streets of New Capenna are lined with crafty rogues ready to swipe your goods and use them for their own nefarious games
In other words, as long as Regidrago has 3 energies attached (the ones you need to declare its attack), you can choose any attack from any dragon in your discard pile
Blue also offers plenty of ways to return Maelstrom Wanderer to your hand, offering not only protection from removal, but the ability to cast it again and again while avoiding commander tax