Mono-blue decks lean on tempo strategies that focus on gaining a temporary advantage, often by bouncing opposing creatures since blue doesnt remove permanents as well as other colors
Acererak the Archlich Im going to have fun speed running dungeons with my old pal Ace, let me tell you
This gives your opponent a hint at what might be about to come their way, and even when you put a creature into play, they usually cant be used to do damage until the next turn, unless the card is an instant, a category of card thats yet another exception to the rules
Where Arabian Nights has Juzam Djinn and Library of Alexandria, and Antiquities has Mishras Workshop and the Urzas lands, Homelands has Sengir Bats
So regardless if your opponent draws a card or discards a card, youre getting more resources
This opens up a lot of combo potential with either destroying your opponents artifacts or doing unexpected things with your own artifacts. Its going to be easy to grow this elemental cat, potentially infinitely, and its a very unique effect thatll be hard to remove with spot removal