Black cards usually use life as a resource, so having an easy way to recover those life points is always great
But cards like The Ozolith and Reyhan, Last of the Abzan are designed to hold onto the counters, preserving them until you play your next threat
destoying th opposing threat at the cost of a card in hand
You should find out which platform is used as the reference in your area (Star City Games, Card Kingdom , and TCG Player are the most common) and use it to check prices when listing a card for sale or when someone asks you its value at a tournament
The simple lines, small scale, and emphasis on one character per card makes this a very approachable drawing exercise
However, to Romin's utter shock, they called Nail in to serve as their third member