The hybrids had cheaper costs that you could play early, often when you might not have drawn both colors of mana, and the traditional gold cards had higher costs, usable at a time when you most likely have drawn both colors
At its worst, it still offers you a good amount of card selection for a low cost
With an ability that rewards you for drawing cards while hes exerted, if youre good enough at drawing cards (and many cards in Into the Inklands let you draw extra cards), you could scale a lot of lore really quickly
Counting specialty products, Blood Moon has been printed 12 times and Back to Basics has only been printed twice
Stack up that damage and burn opponents into ashes
What is great is getting three cards on the back of your large dork or doing them enough damage that your large dork needs chumping for the rest of the game