Every rare and mythic has at least one alternate treatment, and some have twoup to some that have five versions, if you count the Buy-A-Box of Satoru Umezawa or the seven versions of Hidetsugu, Devouring Chaos, one of which is WPN only
Together, Whispers and Boost will surely change the game circuit, especially with the removal of Sets 1 4 from the competitive matches since Fabeled
The MUR sits at ~1/50 boxes, which means its a genuine chase but when it hits, it hits big
Butterbur, Bree Innkeeper FromTheShire: I'm actually no sure if this even makes the cut in Hobbit/Food decks since it only triggers if you don't control a Food, and I suspect more often than not you are going to have them laying around at the end of turn, either because you made a ton or just don't have the mana to crack the one you have
While not the best stat boost, it is very useful in decks that want to go wide
Rare Finds: Sometimes collectors sell off parts of their collections, which can lead to unexpected finds and rare cards at lower prices