Typically, having very few cards in your library is a nightmare scenario, so cards like Doomsday or Leveler are trying to enact a harsh penalty that turns out to be a boon
Emet-Selch, UnsunderedEmet-Selch, Unsundered The front side of Emet-Selch, UnsunderedEmet-Selch, Unsundered is a nice collection of abilities, and the condition to transform Emet-Selch isn't all that difficult to accomplish given the amount of self-mill available in Dimir
At seven mana, it was one of the most expensive creatures to cast in MTGs Alpha set, but its flying 7/7 body made it a devastating forceif players could meet its demanding upkeep cost
2: Reanimate While there have been plenty of high-power, high-cost spells on this list, Reanimate has a huge impact on the game for the cost of just one black mana
This creature makes it so that, whenever its controller casts a spell, their opponents can't cast spells of the same mana value until the next turn
Still, Yuriko feels a bit too powerful sometimes, so mono-black is an option if you need a more mid-level ninja build
