Thaumatic Compass

3, T: Search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.
At the beginning of your end step, if you control seven or more lands, transform Thaumatic Compass.
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Spires of Orazca
(Transforms from Thaumatic Compass.)
T: Add C to your mana pool.
T: Untap target attacking creature an opponent controls and remove it from combat.