Witherbloom, the Balancer

Affinity has almost always lived on artifacts, where the discount rewarded flooding the board with cheap permanents that did little on their own. Here it hangs off creatures instead, and the design turns that on its head: the more bodies you commit, the cheaper the Dragon lands, so the payoff for going wide is a 5/5 flier with deathtouch that a full board can drop for close to nothing. The static ability is where the real machinery lives. Extending affinity for creatures across your instant and sorcery spells means your removal, your card draw, and your finishers all bend to the same board-state math the Dragon does, so a developed battlefield deflates your entire spell suite at once. That collapses two usually separate resources, board presence and mana efficiency, into a single axis: creatures are your ramp and your threat density in the same breath. The tension is that the payoff peaks exactly when a board wipe would hurt most, since sweeping your creatures re-inflates every spell in your hand. Deathtouch on a flier keeps the body relevant as a defensive anchor while the discount engine runs, and the Golgari color pairing frames it as the balancer of a guild that trades life and creatures for value: the more you overextend, the more the whole deck rewards you, right up until someone punishes the greed.