It can make something an artifact permanently, and it plays into any deck's framework where you want to en-artifact your stuff to enhance them with cards like Darksteel Forge or Padeem, Consul of Innovation
The goal is to exploit something smaller and keep the 4/6 deathtoucher intact, but sacrificing Sidisi to itself and grabbing a mass reanimation effect is always a solid gameplan, too
He can survive most 3-4 cost characters challenges, and cant be Brawled, Foxed, Medusad, Kitted, or Smashed
Crack your Lotus Bloom, your eggs, generate a lot of mana, and cast something like a Faith's Reward or Open the Vaults that can return all the artifacts youve cracked back to the battlefield
At the beginning of combat on your turn, target artifact creature you control gets +2/+0 until end of turn