Shadow Prophecy

The dig scales with the spread of your manabase, and the shape of the effect changes as it grows: a single basic land type makes this a one-card peek where you keep what you find or throw it away, while three types turns it into a three-deep look that stocks hand and graveyard at once. Everything you glimpse and decline drops straight into the yard, none of it laundered through your hand first. Reanimation targets, flashback fodder, and delve fuel all land in the graveyard through the same selection that fills your hand, which is why the mill is the productive half rather than the waste. Fire it with two or more types and you pocket two cards from one instant, so this can be genuine card advantage; cast it thin and it is pure smoothing, sculpting both zones for two life. That life loss is trivial in most black shells and a real tax in one already leaning on its own total. The manabase pulls the design two ways: reaching across a rainbow of types keeps improving the effect long after the fixing itself has stopped mattering, so a wedge or shard build gets a payoff wholly divorced from whatever the mana is actually casting. It bills itself as a fixing reward and behaves as a filtering instant, and the more your deck wants what falls into the graveyard, the less that milling looks like collateral.