This Colorless Prison deck wants to resolve Trinisphere, Karn, the Great Creator, or The One Ring to lock us out, so Force of Negation is one of our only ways to interact with their noncreature permanents for free on their turn before they stick. Portable Hole can exile an early Grim Monolith, Chalice of the Void-adjacent piece, or a two-mana artifact before it generates value. Fatal Push has no legal creature targets in their deck, and Street Wraith's life payments are unnecessary risk against a deck with no fast clock. Keep Force of Will up at all times to contest their key artifacts and planeswalkers.