Mew ex [Pokmon 151] lives in my head rent free because it is that good
Here is the rather short list of other Dimir cards that have had play in the cube, mostly they are mill cards or niche combo peices and are therefore about as narrow as it gets
After all, it only deals 130 base damage but should be a lot better now with Mega Gengar ex , which deals 230 damage
Mostly due to early templating and designers not realizing what they were doing rules-wise, Urza's MineUrza's Mine, Urza's Power PlantUrza's Power Plant, and Urza's TowerUrza's Tower have the land types "Urza's Mine", "Urza's Power-Plant", and "Urza's Tower"
There's a wide variety of instants, sorceries, and even cards that interact with a few specific mechanics that will help you get ahead in card advantage, the iconic concept Magic: The Gathering players constantly look for