Appearing in Into the Inklands selection of emerald cards, Ursula, Deceiver of All costs three mana to play - or can alternatively be added to your inkwell - in return for two strength, three willpower and a single point of lore
Motherhood, like all dictatorships, chooses a velvet palm or iron fist, and Elesh Norns got a thing for metal
This card is rarer than its 'Common' status would indicate, as only a limited number of copies were distributed to those who enjoyed the day's festivities
Another popular card and commander for poison decks is Atraxa, Praetors' Voice because it allows you to proliferate on your every end step
Skip the $20+ cards (Thrumming Stone, Coat of Arms, Cover of Darkness) and the deck still hums: Commander: Karumonix, the Rat King (~$1) Engines: Pack Rat (~$3.30), Piper of the Swarm (~$3), Ogre Slumlord (~$0.45), a couple of Relentless Rats / Rat Colony (~$56 each cap the copies to stay on budget) Payoffs/utility: Crypt Rats (~$0.50), Nezumi Bone-Reader (~$0.40), Bontu the Glorified (~$3) as a sac outlet, Throne of the God-Pharaoh only if budget allows The rest: cheap black removal, Swamps, and a Sol Ring The whole list comes in well under $50, and it scales up gracefully add Marrow-Gnawer and Thrumming Stone later and the same shell jumps several power levels
Trapped in the Tower 2.5 Much better removal than Pacifism as it shuts down the utility creatures but it still doesn't stop passive effects and it really didn't need the non-fliers clause for balance reasons