mtg whenever an artifact enters the battlefield draw a card Skyscanner [Starter Commander Decks] The Gathering Prophetic Prism |2| Artifact. When

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Snow Creature - Snake Color tag templates(None) Outcaster Trailblazer When this creature enters, add one mana of any color

Wrenn's Resolve is an awesome new draw card from MTG March of the Machine

On top of that, you included an Atraxa as an extra card and I actually already run an Atraxa deck

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

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