Theres another restriction thats implied here too: basically, youre going to want to play active spells here because if you cascade into a counterspell or something like Heroic Intervention, there might not be any use for it
One look at a card like Sheoldred, the Apocalypse should tell you everything that you need to know about the evolution of black creature threats over the years
You can even go infinite with the Bell-Ringer, provided you have a creature in play that can tap for mana
Card advantage comes in the form of Chaos Channeler, Neyith of the Wild Hunt, Priority Boarding, Bag of Tricks, and The Deck of Many Things
Since it has flash, you can cast Misleading Signpost at any timebut doing so during the declare attackers step lets you get away with some shenanigans to throw your opponents off balance