Gems of War is like a new 20 hour Puzzle Quest. Tons of content to replay and troop combinations.
It gets very time consuming and/or pricey trying to make a high end team. Stay away if you’re the type to chase after units and abilities. I pretend the events, guilds & upgrades don’t exist. I’m over 50 hours and still having fun with two starter troops in my main team.
The freemium stuff ruined the other mobile Puzzle Quests for me.
Have you tried Hungry Cat Picross? It’s wonderful. I even reset my progress after I was done to play again someday.