Power Sink

The interesting clause is the punitive one, and it works opposite to how it reads. Strip the rider away and you have a soft counter on a scaling curve: pay X or your spell dies, the same skeleton later refined into Mana Leak, Miscalculation, and Syncopate. But the second clause only bites a player who has mana left to lose. If the opponent already tapped out to cast the spell, the land-tapping rider does nothing; it punishes the player who kept lands untapped, taxing them not just for the failed spell but for the resources they were holding back. The two halves of that punishment are distinct: any unspent mana drains immediately, and then their mana-producing lands are tapped, so those lands cannot generate more until the untap step. That makes it a single-turn tempo hit rather than lasting denial. It reads as a counterspell and functions as a tempo crater, the kind of scorched-earth rider that early Magic was still comfortable bolting onto a counter. The lineage tells the rest of the story: every soft counter Wizards built afterward kept the X-or-counter math and dropped the punishment entirely, which dates the land-tapping clause to a moment when designers were still deciding what a counterspell should cost the loser. The mechanic survives here as a snapshot of that earlier philosophy, preserved on the card itself.