Guild Wars 2

20 minute cooldown is too low for this type of tactic. A minimum CD of 30 minutes would be acceptable. Honestly ANet, play your own game. All modes of your game. There is no way this was thoroughly play tested.

If you want a prime example of why it is not balanced come to T1 EBG while JQ is in control of SMC. Hardened Gates, Iron Guards, Chilling Fog, Dragon Banner, and Airship Defense combined with superior siege. What amazes me is that you can have all of that on a paper SMC. The balance logic there boggles the mind.

If they played their own game its most likely in a huge blob, considering most changes they made last couple of years.

That can’t be true JQ only uses skill fights to defend and their k/d ratio is generated thru even number fights with no banners.