Sylvan Library 7.5 This is a much more economic version of the Divining Top if you don't have need of the artifacts
Imotekh the Stormlord Imotekh the Stormlord helps black get aggressive with their artifact creatures
If there's a cost with having that creature attack its owner, you aren't forced to pay that cost, so you may have it attack another player, attack a planeswalker an opponent controls, attack a battle an opponent protects, or not attack at all
Being situationalthat is, requiring your opponent to have an artifact worth killingis an inherent weakness of artifact removal, which is why flexible removal that hits multiple card types gets valued highly
Hazel of the Rootbloom While I think Chatterfang, Squirrel General is the better Golgari tokens commander, Hazel of the Rootbloom makes a strong argument for going in the command zone thanks to the high ceiling on the mana ability, especially if you build around it with cards like Vitalize
It sees inconsistent play in Pioneer, but it still sees some and has a reputation as one of the most powerful 1-drops in Magic