The actual Pokmon, items, and support cards included in the set are still unknown
During your opponents turn, its Quick Effect can destroy a Machine you control and salvage the scrap to Special Summon a Machina from your Deck with a different name and equal or lower Level than that Machine
Will this remain the case
In a planeswalker-heavy build, that means walkers enter with twice their loyalty, often letting you ultimate them the moment they hit the battlefield
If you see multiple good artifacts and enchantments from your opponent, Naturalize becomes a good card (even though you would never maindeck it), and similarly Plummet can do great work against a deck with many flyers
But as of the release of Modern Horizons 3, Brewers have combined the Boom // Bust package with a suite of powerful new cards to create something truly unholy