Hi- I have one suggestion to the ones trending above.
It’s related to the attack times (in minutes.seconds) to be shown next to the war history crowns.
We generally see in the attack history the units, spells the name of the attacker and the crowns won by him. My suggestion is to keep a timer also next to it. In that way, if I change my design, wave composition, I can know if it is effective by the change in the time that the player took to bring my gate down. If the attacker is taking less time (more time remaining > 1 min.) that is I have to seriously look into my design at that particular level. If the attacker is taking more time (less time remaining ~2-3s.) then I know a slight twist in the design or a change in the towers, an obstacle can help me to gain victory over my opponent.
Just my suggestions, What do you think? Although it’s not an alternative to attacking videos, it might be helpful.