Cateran Slaver

The Mercenary tribe was built around a recursive search: tap, pay, pull a smaller Mercenary directly onto the battlefield, then chain down the cost curve again next turn. Most of those links trade power for depth, fetching utility bodies that gum up combat or grind out incremental advantage. This 5/5 is where that accumulated selection finally converts into pressure. Its activation drags any Mercenary permanent of mana value five or less straight into play, which covers nearly the entire tribe, so the engine you install last is also the one that reaches the rest of the chain. The five-mana, tap cost is no bargain: it demands a board developed enough to spare the tap and protect the body that carries it. Swampwalk is the quieter half of the package. Against the mono-black opponents this kind of card expected to meet, the 5/5 becomes an unblockable clock, threatening to close the game on its own while the smaller Mercenaries assemble the toolbox behind it. The design answers a question the tribe kept asking: once the search loop is running and the board is stocked with role-players, who actually ends the game? This is the answer, the heavy link you reach for when the cheaper ones have done their fetching and something needs to start dealing damage.