The fact that these are permanents, which can potentially be flickered, reanimated, or otherwise reused at low cost, makes these already flashy cards very strong
Blanket of Night does the same thing as Urborg, Tomb of Yawgmoth but since its an enchantment its a little more vulnerable to interaction, but I like having the redundancy
This is done by MTG designers to show that the color is corporatist and selfish, and black is one of the colors where these definitions best apply
Legendary Creature Human Assassin Uncommon Andreia Ugrai 3/3 NOT LEGAL Standard NOT LEGAL Future NOT LEGAL Historic NOT LEGAL Timeless NOT LEGAL Gladiator NOT LEGAL Pioneer NOT LEGAL Explorer LEGAL Modern LEGAL Legacy NOT LEGAL Pauper LEGAL Vintage NOT LEGAL Penny LEGAL Commander LEGAL Oathbreaker NOT LEGAL Standardbrawl NOT LEGAL Brawl NOT LEGAL Alchemy NOT LEGAL Pauper Commander LEGAL Duel NOT LEGAL Oldschool NOT LEGAL Premodern NOT LEGAL Predh Deathtouch Other Assassins you control get +2/+0
The part that intrigues me the most is Venturing into the Dungeon, but even that seems a little clunky, though it is obviously a late game mana sink
