Daru Encampment

Two jobs that usually live on separate cards share one slot here, and the friction between them is the whole design. Tap it for colorless mana early; later, when the curve is spent and you are flooding, that same untapped land spends a white mana to throw +1/+1 onto a Soldier. The buff has no timing restriction, so an open Encampment becomes a mid-combat surprise: the +1/+1 lands after blocks, pushing a point of lethal through a block that was supposed to hold. That payoff costs you fixing, though. The land taps only for colorless of its own, so the deck pays a real tax to run it while still needing white sources to cast (and pump) the bodies it cares about, and the ability points at Soldiers and nothing else, which means it goes inert the moment the tribe does. It sits in a small line of creature-type lands from the same design moment, each granting one flagged tribe a repeatable boost, and the thinking is clear: give an aggressive tribal deck reach without spending a card slot on it. This is gas you never have to draw into. It looks like a land, sits in your manabase, and quietly converts excess lands into damage once the early game is over, asking nothing of you except that you stay committed to playing Soldiers.