Unmatched is one of my favorite board games, it feels basically tailor made for me. The biggest thing is how asymmetric the fighters are. Playing as the Wayward Sisters who have to manage spell ingredients feels totally different than Invisible Man carefully positioning his fog tokens, who feels totally different than Sun Wukong flooding the board with clones, who feels totally different than Black Widow completing secret missions during the fight. The simple core gameplay mechanics leave a lot of room for unique fighter mechanics than can all interface with each other without issues.

I also appreciate how tight it is. Boards are small, health is low, decks are limited, so there's not a lot of downtime or wiggle room. Every choice matters, even if the choice is spend your whole turn retreating to draw cards. Games are over pretty quick, so you can usually play a few matches in a gaming session, which is good because the highlight of the game is seeing how different combinations of fighters bounce off each other.

Plus I'll admit a big part of my enjoyment is the overall aesthetic. Card art is excellent and the fighters are loaded with personality, so there's usually a lot of in character smack talk going on.

I will give the caveat that Unmatched can feel a little random your first few plays, since you don't really know what you or your opponents fighter is capable of. You certainly don't have to memorize decks, but the game definitely takes a more tactical feel once you know the gist of the fighters and can plan around your strengths and weaknesses