Kusari-Gama

The damage-spreading clause is the entire payload, and it punishes one specific choice the defending player makes: blocking. When the equipped creature connects with a blocker, every other creature that player controls takes the same hit, turning a single profitable block into a board-wide trade. The pump exists to push the combat-damage number higher on demand, so the attacker's controller can size the spillover to whatever the opponent left back. The problem this hardware solves is how to build an attacker no one can safely chump without bleeding their whole board, and it answers through punishment rather than evasion: you want them to block, then you make the block cost everything standing next to it. The cost structure keeps it honest. Both the equip price and the pump are steep enough that the redirection has to justify the whole package, and the effect only fires when the equipped creature damages a blocking creature, so an opponent who simply takes the swing to the face gives the equipment nothing to spread. It is board-control machinery wearing the silhouette of a weapon: the equipped body is incidental, and the value lives in turning the defender's own combat math against the rest of their team.