Update- I have now ''tested'' the activation of this ability .... it works great !
With Sorcery Shield @ 100% , Sorcery Shield Chance @ 30% , Augur ( activate champion) @ 162% ...plus 3k+ Beast Riders plus All of my SH/defense troops up top I am 100% covered 82% of the time fire balls are raining down.
In other words out of 10 ten packs only 2 hit my troops with 8 of those showing zero losses (my troops). This ability works while at leaguemates castles as well ...
It will take years to build enough SH troops to achieve 100% coverage so 82 % in a few months works for me
So glad to hear that, my Lord! 🎉