Tsabo's Web

Hate cards keyed to a mechanic rather than a deck rarely survive the cantrip test: if the answer also replaces itself in hand, it costs almost nothing to slot, and that is the line this one walks. The replacement draw is what rescues it from sideboard-brick status; you spend two mana for an artifact that does nothing to the board, a real tempo cost, but you get the card back, so the static effect rides along essentially for free. And the static effect is precise without being a targeted spell at all. It applies globally to every land, but it carves out mana abilities entirely: a land that taps for colored mana, or filters one color into another, keeps doing exactly that. Only a land whose activated ability does something other than make mana gets stranded after a single use, sitting tapped while everyone else untaps. That bites the utility lands whose whole value is a repeatable non-mana tap: manlands that animate to attack, lands that buy combat tricks or card advantage, and Maze of Ith above all. Maze removes an attacker from combat every turn; once it has tapped with this on the field, it never untaps to do it again, so a perennial blocker-substitute is reduced to a single use. Because the answer is written against a function instead of a color, it ages with the function: every new land whose payoff is a non-mana tap quietly falls under what this two-mana cantrip already covers, no errata required.