Trenzalore Clocktower is just as good as an Island at a base level, and it also lets you cast a one-sided two-mana Timetwister, provided you can keep it around for 12 turns and have a Time Lord in play
These products can create demand from both MTG players and fans of the wider franchise
As designers add complexity to a card, they more often than not make it less fun to play
// Isilu, Carrier of Twilight Legendary Creature Elemental God 5/5 Flying, lifelink Each other nontoken creature you control has persist
Wrenn's Resolve is an awesome new draw card from MTG March of the Machine
Since cycling generally costs one or two mana, no matter what cycling creature you end up hitting with Unpredictable Cyclone, you'll come out way ahead in terms of mana, paying two for a four-, five-, or even seven-drop, which sort of puts Unpredictable Cyclone into the Wilderness Reclamation / Fires of Invention category of absurdly powerful ramp spells that only work in fairly specific decks