Originally Posted by lovlov

In gambit 4 there was one SR card all duration. In gambit 5 there was one R card all duration and one SR card on second part.
In Gambit 6 there is a SR card already on first part.
So i do not believe there will be any SR for the second part of gambit 6.

I considered quoting the wiki but i realized that the wiki does not mention explicitly the silver keys can give SR card even though it is already known fact. (At least i knew.) I am a bit confused now, more comments may be needed.

If I recall, I think the last gambit was a bit shorter, too. This is a more 'typical' one in every way. I'm not expecting a new card next phase, but I'll hold a couple keys back just in case.

I have not claimed rewards for the boxed I found and other people have opened.
I will wait until 2nd half of this event starts because I will have more slayers and slayer bonus in 2nd half.
The stamina restore items I have not claim dont start to rot until they are claimed.
Likewice I have not used and keys in first half after I got the SR.
Maybe I get benift from dont using keys in first half maybe not but it do me no harm.