Bloodsoaked Insight // Sanguine Morass

The printed seven mana is a ceiling the deck around this card exists to demolish. Every point of life your opponents lose during the turn shaves a generic from the cost, so the more damage you have already pushed through, the cheaper the library raid gets: fire it after a big attack step and it collapses toward a bargain, cast it cold and it stays a full seven-mana investment. What that price buys is a three-card dig into an opponent's deck with the temporary right to play the exiles, and the any-type mana clause frees you from color-screwing yourself on the payoff. The wager is entirely on tempo you have already generated. It is at its best in blowout turns, its worst as a topdeck when the board is quiet and nobody has taken damage, which is a fair tax for a card-advantage spell that can arrive absurdly early. The real engineering is on the back half: a tapped Rakdos dual that always does something. That land mode is what makes the whole high-variance front half safe to run, because the seven-mana gamble never becomes a dead card in an opening hand. You keep the swing-for-the-fences spell and pay for the misses with a land drop, letting the cost-reduction race run as reckless as it wants without ever punishing the draw that finds it too soon.