Edward Kenway looks pretty boring to me, but its undeniably powerful
Agent Frank Horrigan, in theory, lets you do so twice each turn
The double-faced cards from Zendikar Rising like Silundi Vision are already pretty amazing but get much more value in this deck, since if you play them as lands early in the game, you can always pick them up later with a Moonfolk activation if you need the spell side
This is the most common graveyard hate in Magic
Its also worth mentioning that one of the most popular casual cards in the set is Infernal Grasp, and we can bring up that math too: 2.5% to get a foil borderless, 5% to get a nonfoil
Plus, when you consider most equipment requires both an upfront cost and an equip cost to attach it to a creature, this sword is actually quicker than many others