Grixis Grimblade

The black pip is fixed; the other half is hybrid, and that split is what lets this lean toward Grixis without conscripting all three colors. It always demands black mana, but the second cost comes from blue or red, so a Dimir or Rakdos deck stocked with gold permanents can cast it off two colors. The body is the trade. Cast it into a board with another multicolored permanent and it stands up as a 3/2 deathtouch wall that trades up against anything and taxes every attack into it. Cast it into an empty board and it deflates to its printed 2/1 with no keyword, which is the constraint that keeps the deathtouch from being free: the reward is metered to your commitment to gold cards, so the better your spread of multicolored permanents, the more this earns. It works as both payoff and nudge, a card that only delivers if you have built the deck it wants and quietly rewards you for doing so. A small, honest piece of multicolor-matters engineering from the era when the gold-card archetype was being explicitly courted: cheap, conditional, and built to make the rest of your two-color and three-color permanents pull double duty.