At the beginning of your upkeep, if you control the artifact with the greatest mana value or tied for the greatest mana value, draw a card
With cards like Nest of Scarabs, it can produce a small army of insects, or you can use Blowfly Infestation and continue to spread -1/-1 counters around
That mana can be paid with the same land you sacrifice making the ability very easy to swallow
Thats all well and good, but how do we actually build the deck
Its prowl cost gives you an extra turn spell, and these three can all be brought to the top of your deck with Faerie Harbinger (as expensive as the Harbinger is)
If you cant swing for 3, you can tap, exile a trio of cards to cause a foe to lose 3 life, and continue as long as you have fuel in the graveyard