2000 One Piece Carddass Hyper Battle - Second Stage - Sanji S13 (Special/Foil) One of the biggest sleeper in this list
Milling this with Dihada and then bringing it back it seems pretty solid as a starting point, and as an Assassin lord, it gives some extra utility
When War for Enlightenment is defeated, scry 2, then draw two cards
3 Crystal Skull, Isu Spyglass Mana And Card Advantage Ramp that also serves as card advantage is extremely impressive, even if this card requires the deckbuilding cost of filling your mainboard with historic cards
If youre still not quite satisfied with what mono-black offers alone, you can add red for the Bloodtithe Harvester/Fable of the Mirror Breaker package
It has a nice vigilance body to keep attacking and it can proliferate via enrage