Servant of Volrath

The trick here is the timing word: "leave the battlefield." This Minion's sacrifice trigger fires when the Servant goes away, not when you decide it should, which makes it a fundamentally different beast from the activated sacrifice outlets that the modern aristocrat archetype is built around. You cannot tap it on demand to convert a dying creature into a trigger, and you cannot point it reactively at something that is about to die unless you have already arranged to remove the Servant first. The 3/3 body was the selling point in its era, paid for with a costed downside meant to make you hesitate, the way a lot of early creatures bought their stats by attaching a tax to dying. What that design did not anticipate is how cheap the cost would become: "sacrifice a creature" only stings when you have nothing you would rather lose, and decades of token-makers and death-triggers have made that a low bar. Because the trigger fires on any leave-the-battlefield event and not just destruction, bouncing or blinking the Servant routes around the body while still cashing in the sacrifice. As a study in how a costed-downside creature ages, it is almost clinical: the part the designers framed as a penalty has quietly inverted into a scheduled value trigger you can build a board to deserve, rather than a liability you suffer.