An interesting green enchantment from Dark Ascension that won't see play outside of casual:
I'm going to take a guess and say that the only reason Feed the Pack is rare is because of the wordiness of the card (and for no other reason).
This is a really bad card.
It's not that creating mass wolf tokens is a bag thing, it's the fact that this tries to be an alternative to Kessig Cagebreakers. While in reality, Feed the Pack is a conditional Kessig Cagebreaker which requires a sacrifice, which creates wolf tokens on your turn (giving your opponent a chance to respond to it), which costs more mana to cast. That being said...
...if you're a brand new player, if you opened two packs of Dark Ascension, and if you were unfortunately to open two copies of Feed the Pack and were forced to play Feed the Pack, you might as well go all out. Consider this trio of Innistrad Block enchantments:
Argothian Enchatress and Enchantress's Presence (among others) that you can use to fill your deck. I still think it's a really bad card, but with the right deck, facing opponents of equally bad decks, you could still have some fun with it.