Plunge into Winter

The optional tap is what elevates this above a plain cantrip. Cheap card-draw in white has always been a design tension: white wants replacement effects but rarely gets clean two-mana ones without a rider. Here the rider is a benefit rather than a cost. Tapping a creature is a defensive tempo tool, a way to blank an attacker before your opponent's declare-attackers step, or to keep a blocker home before your own swing. The "up to one" clause is the important detail: when there is no useful creature to tap, the spell collapses into a straightforward two-mana scry-and-draw at instant speed, so it never sits dead in hand. The scry-before-draw ordering does real work too, letting you smooth toward a specific answer or bury an unwanted land before the filtered card slides into your grip. That combination (a combat-relevant tap you can decline, plus a cantrip that filters) makes it a fair-deck utility card rather than a build-around: it holds up mana on defense, it replaces itself, and it nudges your next draw toward whatever the game is asking for. Nothing here is flashy, but the decision density packed into a single instant is more than the rate suggests.