Concept of Card:
You deal damage every turn, don't you think you deserve a card for that for just one cheap resource_

Card draw is pretty important, and it only costs 1 to give you an extra card (on top of keeping this as a resource), which is better than most other generic horde or alliance cards that give you one extra card. Battle of Darrowshire makes you destroy three graveyard allies, The Love Potion makes you exhaust two allies, Bizzik Sparkcog makes you destroy an ally, Your Fortune Awaits makes you pay 3, etc...