Black When you absolutely, positively need to kill a creature, black is second to none
While reasonable payoff this is also a do nothing by itself and requires some setup to near its ceiling
Goblins can carve out a fair chunk of play in the format
In this deck, you'll find powerful magic users who take center stage in the Amethyst portion of the deck
If we first look at Standard, we can see there are plenty of spells players want to cast that cost five or more, especially Leyline Binding (which never really costs five), and the enchantment side of Virtue of Persistence
Thanks to Kaust, Eyes of the Glades activated ability, flipping creatures is easier than ever before