The description box for Quick Draft Tarkir: Dragonstorm has incorrect information. The Green/Blue description says: "Leave the Graveyard Fill up your graveyard, then use Mobilize or Renew and others to get bonuses for cards leaving your graveyard."

This description has two issues. First, Mobilize does not interact with cards leaving graveyards; it triggers when a creature attacks, and creates attacking tokens. Second, Mobilize exists only in Red, White, and Black - not in the Blue/Green combination. I believe that the description is intended to use the word "Harmonize" instead, which is a mechanic that appears in Blue/Green which causes cards to leave the graveyard.