Marchesa, Dealer of Death

Crime is the cheapest condition Grixis interaction has ever been asked to satisfy. Because targeting an opponent, anything they control, or their graveyard all count, the filtering rides along with interaction you were already going to cast: point a removal spell at their board, strip a card from their hand, bounce a threat, and the trigger comes stapled to it for a single extra mana. That is the throttle. You are never compelled to dig, but when the mana is there, each crime becomes a two-card look that seeds the graveyard as precisely as it fills the hand. The second half of that clause carries real weight: the card you decline isn't discarded, it's placed, so a shell that wants creatures or spells in the yard treats the rejected pick as fuel it chose rather than a tax it paid. The engine's honesty comes from its dependencies. The trigger needs untapped mana and a legal crime queued in the same window, and against a board with nothing worth targeting it simply falls silent. A 3/4 for three colored pips blocks well and clocks poorly, which frames the card correctly: this is a card-selection motor that happens to hold the ground, not a threat that happens to draw. The design's whole ask is that you keep committing petty crimes you were committing anyway, and pay a coin each time to turn them into information.