1. It is not a backrow heavy format despite heroes running lots of backrow.
2. If you run cards like Plague, Birdman, and Tomato, you can't really call it stun. Run things like 3 Thunder King, 3 Doomcaliber, some Dd Warrior Ladies, etc. run big beaters that stun the opponent, not small tuners.
3. Chaos Stun is good but if you are just playing on DN, Rock Stun is better.