Here is a data-informed thought on card evaluation
For the cost of seven mana, this Slug Horror states that at the beginning of each player's upkeep, a slime counter is put on each creature you don't control, with each creature getting -1/-1 for each slime counter on it
Illustrated by Steve Prescott Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Not Legal Comp
Im also focusing on Commander, though some of the best land tutors in Commander also overlap with 60-card Constructed formats
While Dark-type decks are struggling, Pecharunt ex provides them with a powerful piece of utility that allows them to combat one of the strongest decks in the meta
But the problem with many of the lands is that they have cycling, which means they have the drawback of entering tapped