This has to do with Scythe of the Wretched, an artifact equipment that gives the equipped creature +2/+2 and says that whenever a creature that is dealt damage by the creature equipped with this card is put into a graveyard, you can return it to the battlefield under your control
The design team (Aaron Forsythe, Richard Garfield, Mike Elliott, and Tyler Bielman, led by myself) approached Dimir as the "library guild," much as we approached the Golgari as the "graveyard guild." As I explained above, this comes about because blue and black have more interaction with the library than any other two-color combination
Welcome to the Great Illuminary, the center of a magical realm called Lorcana
All of the creatures that recur but fail at blocking got a lot better with vehicles coming along
Data refreshes hourly across major sets including The First Chapter , Rise of the Floodborn , Azurite Sea , Archazia's Island , Fabled , and more
Multiple Mouse Armors will stack the effect too, which can make characters that already have some Resist, like Tiana, almost impossible to banish