Bant is an efficient and often proactive shard that many blue and green players enjoy
One part mizzium, two parts elemental energy, eleven parts danger
A Birthing Pod for artifacts, Oswald is sure to make a splash
Demons are often big creatures with high power, so being able to use them to blast an opponent's creature off the board or even go straight for their face gives you a way to either force the life loss that Abaddon so desperately wants, or simply bring everyone else down to your life total
Mono-Red is already a standout deck in that format, and the ability to more consistently splash Klothys, God of Destiny - maybe never exposing a second source of Green an entire long game - seems like an impending technology reboot for the format
It's not hard to have more artifacts you're willing to tap to outweigh the one mana to tap it (see: Treasures)