Sorcerous Spyglass

The colorless answer to a problem that used to demand the right color of mana: a Pithing Needle stapled to a peek at the opponent's hand. The naming clause is the meaningful upgrade over its predecessor; instead of guessing blind at what the table is hiding, you take the look first, see the planeswalker or the combo piece they have been sandbagging, and then lock down the name that matters. That information is worth more than it looks, because the card's job is preemptive: it stops loyalty abilities, activated combo engines, equip costs, and the buttons on lands and creatures before they fire, but it cannot touch the spell on the stack or the triggered ability that resolves on its own. The mana-ability exclusion is the load-bearing restriction; it keeps the card from accidentally shutting off basic lands and mana rocks, which would have made a two-mana artifact a soft Stax piece rather than a targeted answer. What you get is a clean, color-agnostic silver bullet that any deck can run regardless of its manabase, with the hand-peek doing double duty as both targeting aid and scouting report. It does nothing once the named ability has already been activated and offers no recourse against the unactivated half of the board, so it rewards being deployed early and pointed precisely.