Rootpath Purifier

Static effects that redefine a permanent's supertype are rare, and this one operates on the sneakiest category: it rewrites your lands, both the ones you control and the ones still in your library, into basics. The axis it moves is deck consistency at a structural level rather than a card level. Nonbasic lands often carry drawbacks or invite answers: they enter tapped, they get taxed, they get hit by effects that read "nonbasic." Convert every land you control and every land still to draw into a basic, and those clauses stop touching your manabase. Fetch effects that search for basics suddenly find all of your lands. Symmetrical destruction that spares basics spares yours. The tension is that it does nothing for your colors: a converted Command Tower still taps for whatever it tapped for, since the effect edits only the type line, not the mana abilities. What it buys is immunity to a whole family of interaction, plus relevance for any card that cares about the basic supertype. It sits in a small lineage of type-rewriting statics: Blood Moon and Yavimaya, Cradle of Growth work opposite corners of the same design space, but where those homogenize toward a single named land, this one homogenizes toward the category itself. The 3/4 body is incidental; the reason to run it is the sentence of text stapled to a creature you can protect, recur, and flicker.