A single mana to cast and equip means you can chain off killing your own creatures while also protecting your bigger threats from removal
Finally, the last borderless scene card is the Chaos Shrine's Black Crystal which lets you recur creatures it exiles on your upkeep
That's clearly White, as shown on Steelshaper's Gift, Stoneforge Mystic, Open the Armory, and so much more -- in fact, there's not a single Green card out there before C17 that benefited from having Equipment, only destroying them (Acid Web Spider)
For example, you can blink more stuff with Ephemerate, and protect more creatures and draw more extra cards with Shelter
Although one of the best black cards in MTG , Dark Ritual doesnt build long-term advantage
The combination of pressure and card draw gives you all the tools you could need to win a drawn-out game of EDH