Bloodline Keeper // Lord of Lineage

A token engine that pays its own freight: tap for a flying Vampire every turn, and the only resource it spends is the activation, not your hand. That separation of token-generation from card investment is what makes it a recursive threat rather than a one-and-done payoff, and it sets up the back half cleanly. Once five Vampires are on the board (a count the front side is already building toward on its own), a single black mana flips the card into an anthem that buffs the whole swarm and keeps stamping out tokens. The transform requirement is the balancing condition here: the flip is not a turn-one combo button but a reward for a board you have already committed to, which is why the front face has to survive removal long enough to matter. The asymmetry between the two faces is the design's whole point. As a 3/3 flier it is a slow, repeatable manufacturer that opponents can ignore at their peril; as the lord, it converts that accumulated horde into lethal damage in a single attack step. It is the rare tribal payoff that functions as both the engine and the closer, and it does the work without ever asking you to discard, sacrifice, or draw into a second piece. The token it makes is also itself a Vampire, so the front side feeds its own transform clock, a tidy loop that makes the flip an inevitability rather than a hope.