Urza's Sylex

The historical Urza detonated a device on Argoth that scoured a continent; the design here translates that catastrophe into a mechanism with a cost curve most artifact-based wraths never pay. Getting the button online is the whole tension: the artifact hits the table for three, then demands a full untapped white-heavy activation before it does anything, and it activates only as a sorcery. The blowup itself is a symmetrical mass destruction that leaves each player a six-land skeleton, so it reads less like removal and more like a hard reset that spares the mana to rebuild. The exile trigger stapled to the back end is what makes it its own animal among nuclear-option artifacts: because activating the ability exiles the Sylex from the battlefield, the same act that levels the board offers to tutor a planeswalker straight to hand for a small additional payment. That is the load-bearing idea. The device does not just clear the wreckage; it hands you the next thing to cast into a field where nobody else has a board, and a resolved planeswalker on an empty table is close to unopposed. The two abilities are designed as a single beat rather than two independent effects, which is why the friction (double white, the tap, the sorcery restriction) is priced the way it is: you are paying for a wrath and a tutor that resolve as one continuous swing rather than two separate turns.