Zur is a spellslinger deck. The only win-condition is Laboratory Maniac. This deck uses Ad Nauseam to draw the majority of the deck, then chains spells together until they can resolve Laboratory Maniac and draw their deck, or assemble Doomsday piles and winning that way. High Tide is a very powerful engine that produces lots of mana with untappers like Candelabra of Tawnos and Time Spiral. The deck uses Zur primarily for tutoring Necropotence, which is a plan B.