Flying {5}{U}{U}: Draw a card for each color among permanents you control. {5}{U}{U}, Exile Soul of Ravnica from your graveyard: Draw a card for each color among permanents you control.
2014-07-18
Exiling the Soul from your graveyard is part of the last ability's activation cost. A player can't remove the Soul in response to prevent you from activating the ability.
2014-07-18
To determine how many cards to draw, count the number of colors among permanents you control as either activated ability resolves. You'll draw between zero and five cards.
2014-07-18
You can activate the last ability only if the Soul is in your graveyard.