Lithoform Blight

Land destruction that leaves the land standing. Instead of blowing up a value engine or a manland, this Aura strips the target of everything that made it dangerous: no land types left to count, no activated ability to tap for a bespoke effect or animate into an attacker. What remains is a colorless-producing rock with a painful any-color option bolted on, and the enchanting player, not the owner, is the one who chose to neuter it. The design trick is that hobbling a utility land this way is often better than destroying it. Kill the land outright and it drops to the graveyard, live territory for any recursion package the opponent is running; blight it and the thing just sits on the battlefield producing colorless mana, its ability denied and its owner given no reason to replace it. The cantrip is the concession that pays for the narrowness: enchant a land, replace the card you spent, and treat any tempo swing as a bonus rather than the plan. It answers a specific and growing problem (lands that are functionally spells) with a specific approach, treating the target as terrain to be paved over rather than a permanent to be destroyed. Against decks whose engine lives on one or two irreplaceable lands, that distinction is the whole point.