Changed RevealTargetFromHandCost to support more than one card.
Changed DiesAttachedTriggeredAbility to control the generated rule text.
Changed PermanentImpl to make 0 damage events replacable.
Made rule text of some enchantments more accurate.
Added Doran the Siege Tower, Augury Adept, Flagstones of Troair, Hurklys Recall, Matyr of Sands.