2014-07-18 : If Boonweaver Giant isn’t on the battlefield when its ability resolves, you can’t put any Aura onto the battlefield. You may still search the appropriate zones and shuffle your library, if applicable.

2014-07-18 : The Aura card must be able to legally enchant Boonweaver Giant. For example, you can’t put an Aura with enchant land onto the battlefield this way.