What is that used for? I mean… it’s pretty obvious, but how much exp does the card give?
It will give 1000 EXP.
is it 14 days expiry date too?
Not sure. It doesn’t specifically say it is in the localisation or announcement so my guess is no, but I’m not 100%.
thank you guys… and oh… 1000 EXP is… crap 
1000 exp is 1.1 million silver for free. you gon eat your corn bread?
since it’s a one time not stackable reward PLUS it’s very hard to farm cards, so yeah… 1000 EXP is crap
but it’s free, I’m enjoying it anyways