New tactic - wondering

[Cajunking]

I got hit with a tactic that is broken shield, it seems to be similar to Sabo at is froze all building in a 10space area. Any seen this and what is it, and how do I get it.

 

[LordAnubis]

It's Blitzkreg and is a once per day tactic granted by the Brandonberg Gates wonder in industrial age.

 

[Manifesto]

Maybe Marco Polo will offer it for 250 Crowns?

 

[KniferX]

Why are you giving them ideas? Shhhh.

 

[Motaz Tarek]

or a 7 day FC for 1000 crowns