Foil versions are worth even more
Merfolk are nostalgic, unique, and even powerful, with the right commander at the helm
Initially, I started with four Thoughtseize since you can use it on yourself to discard a fatty in a pinch
Instantaneous effect (in a game where almost everything is a Charged Attack, and enemies can dodge those attacks by simply taking their turn and walking away), 4 tile range if you're a Chemist or have the Throw Item support skill equipped, invariable 100% chance of success as long as there's a clear line of sight, useful until the endgame, and doesn't vary in effectiveness based on the target's Faith
These count not only the traditional watermarks found in a card's text box, but also the faction marks found in the bottom right corner of Contraptions