I suggest limiting the Black Market to 15-25 cards... it make set-up less insane and adds more 'planning' to using it. Dominion Online uses 25, which I think is pretty nice.
These cards require special rules:
Embargo, Bishop, Monument, Goons, Candlestick Maker, Plaza, Baker, Butcher, Merchant Guild (tokens)
Native Village, Island, Pirate Ship(mats)
Trade Route (tokens & mats)
Transmute, Vineyard, Apothecary, Scrying Pool, University, Alchemist, Familiar, Philosopher's Stone, Golem, Possession (Potions)
Tournament (Prizes)
Young Witch (Bane)
Hermit (Madmen)
Urchin (Mercenaries)
Death Cart, Cultist (Ruins)
Bandit Camp, Pillage (Spoils)
Marauder (Ruins & Spoils)
Knights (Choose a random Knight)