Supply // Demand

The two halves split along a fault line the frame makes literal: Supply is a Selesnya go-wide payoff, the kind of token production that scales with whatever mana you've banked; Demand is an Azorius tutor that only fetches what carries more than one color. Put them on the same card and you have an argument the guild-block era kept making, namely that gold cards are themselves the reward for committing to a color pair. Demand is the cleaner and more durable half: an Azorius sorcery that finds any multicolored card in your deck, which, where the manabase leans hard into its pairs, plays as a near-universal search, pulling whichever piece the situation wants. The restriction that the target be multicolored is what pays for the effect, since it asks you to lean into gold cards in the first place, something those colors were going to do anyway. Supply is the part that ages less gracefully, since X-cost token output at this rate has been outpaced many times over, but it gives the card a mana sink for the turns the tutor half has nothing left to find. The split is the point: one side answers "I have too much mana and no plan," the other answers "I have a plan and need the piece," and you only ever pay for the side the turn calls for.