Wandering Fumarole

The creature-land template stretched to its most defensive variant: a 1/4 body that animates for four mana, with a power-toughness swap stapled on for zero. That free swap is the part that does the real work, and it changes how the land plays in combat by hiding which orientation it will fight in until after blocks. Left as a 1/4, it blocks and soaks up an attacker; flipped to a 4/1, it threatens to trade up or punch through. Because the activation costs nothing, an opponent committing to a block or an attack never knows the real statline they are facing until the swap resolves, which is the kind of information asymmetry that makes a fixed body behave like a trick. The land enters tapped, the standard tax these dual lands pay for being a threat that survives sweepers and answers planeswalkers without spending a spell slot, and the animation cost gates it behind the mid-game rather than turning it loose as an early attacker. What distinguishes it within the cycle of color-paired manlands is a statline built for attrition rather than racing: the 4/1 ceiling punishes, but the 1/4 floor is what survives across long games. It is not a vigilant blocker; once it attacks it taps and cannot brace for the crackback. Its defensive role is the one it plays on a turn it stays home, daring the opponent to attack into a body that can grow teeth after blocks.