Pulse Tracker

The reach is the whole pitch: a one-power body that does its work the instant it turns sideways, no contact with the opponent required. The trigger keys off the act of attacking rather than dealing combat damage, so a chump-blocked or fully walled Pulse Tracker still costs each opponent a life; the loss is locked in before blockers are even declared. A vanilla one-drop's contribution evaporates the moment it meets a wall, but this one keeps paying out, which is why it belonged to black aggro decks that wanted to close the last few points from an angle creatures could not reach. The output is small but reliable: a fixed point of life loss per opponent, every attack, with no scaling on the body or the number. In a one-on-one game that is a single point a turn; against a wider field, the same attack peels one off each opponent at once, which is the only place the math grows. Note that it only drains in the loose sense of taking life away: you gain nothing, the opponents simply tick down. It is a single-minded piece of incremental-attrition design from an era when black aggro leaned on small, repeatable life loss to bridge the gap between its early creatures and its closing reach, and it does that one job without pretending to do anything else.