Also note that you must use mana like normal, rather than Black's typical "you can spend any color of mana" so run things like Manaliths or Fellwar Stone instead of Commander's Sphere and Medallions as your leader
6 Feed The Swarm The Swarm's Always Hungry Feed the Swarm was Magic's second conscious attempt to seed enchantment removal in black, after the noticeably weak Mire in Misery failed to impress players
Cards like Consider, Serum Visions, and Lunatic Pandora trigger this ability over and over
Notably, Dour Port-Mage also triggers if your creatures get exiled directly from the battlefield, whether that's with your own blink effect, or with an opponent's exile removal like Banishing Light
Magic: The Gathering | Teenage Mutant Ninja Turtles Release Notes The Release Notes include info about the release of a new set, as well as clarifications and rulings involving that set's cards