Not only is this a creature spell and a body on our board, it allows tokens to be mana producers
The biggest weakness of the deck is its slowness
Since Anrakyr lets you cast the spells from your hand or graveyard, you even get to set it up with all of blacks powerful tutors like Entomb and Vampiric Tutor, or you can replay the artifact if your opponent destroys it
This one mana threat has haste and prowess, attacking immediately on the turn it's deployed and growing by +1/+1 for each noncreature spell cast
Combo with Sword of Hours A good combination here is Sword of Hours, which puts a +1/+1 token on the equipped creature each time it attacks
And by spells I mean creatures, sorceries, enchantments, enchant creatures, instants, interrupts, horses, tractor-pulls, and phosphorous