They gain haste until end of turn
Meanwhile, those Steel cards in the deck are doing what Steel cards do best: They're taking up space on the battlefield with powerful attack and defense, while boosting each other
This black sorcerys also way better when you make players sacrifice creatures, because that also gets around indestructible and you have added synergies with cards like Mayhem Devil
This creates an Incubator token with X +1/+1 counters on it, which can then be turned into a creature for only two mana, and can potentially be a win condition all on its own
Its not quite in the slowest category with sets like Midnight Hunt , Dominaria United or Brothers War , where boardstalls are the norm and drafting aggro is a fools errand
In some narrow scenarios it can act as a hard-to-cast Cultivate if you control and target an indestructible nonland permanent