Both the Skyship Buccaneer and the Storm Fleet Spy have the Raid keyword, which allows the player to draw a card when the creature enters play if the player has attacked that turn
Joint Exploration takes this idea step further, giving you the choice of an instant speed Preordain for 2 mana (which while inefficient, lets you look at up to 3 new cards), or for the addition of a green mana, staple on Growth Spirals ability to drop another land onto the battlefield a package deal that is well worth the cost of admission
In the case of Old Text : When Druid of the Emerald Grove enters the battlefield, search your library for up to two basic land cards and reveal them, then roll a d20
Miracle W (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.) Company: Wizards of the Coast Series: Avacyn Restored Item Type: Single Card Release Date: May 2012 Brand: Magic The Gathering UPC: 0666714304010 Stock #: 96003 Our Guarantees to You, Our Valued Customer
So far the economy is alright and since they already announced there will be a fix for duplicate cards in event runs it should become easier over time to get your decks together
