Sanctum Seeker

The drain payoff every tribal Vampire deck wants near the top of its curve, and the engineering is in where the trigger sits: on attack, per Vampire, draining each opponent and gaining you the life back. That placement matters. It does not care whether the attacker connects, so blockers and removal aimed at the swing do nothing to stop the bleed once the attack is declared. It scales linearly with board width rather than with damage, which means a wide, cheap Vampire board outvalues a tall one: ten one-power Vampires drain ten regardless of what the opponent leaves back to block. The life swing runs both directions in a single trigger, so a race the board state says you should be losing on damage can be one you are winning on totals. The 3/4 body is deliberately unremarkable; it is there to survive a swing and keep the engine online, not to threaten on its own. A Vampire tribe had circled this kind of effect before, but anchoring the drain to the attack step rather than to combat damage or to a single named creature is what makes it an engine instead of a value creature: every other Vampire in the deck becomes a trigger, and the deck's whole job becomes building a board the trigger can count.