Flying

When Crow of Dark Tidings enters the battlefield or dies, mill two cards. (Put the top two cards of your library into your graveyard.)

When District Guide enters the battlefield, you may search your library for a basic land card or Gate card, reveal it, put it into your hand, then shuffle.

+1: Choose up to two target creatures. Until your next turn, whenever either of those creatures deals combat damage, you draw a card.

−2: Tap up to two target nonland permanents. They don't untap during their controller's next untap step.

−7: Draw three cards. You get an emblem with "You may cast spells from your hand without paying their mana costs."