Okay, there are a few possible answers so I will try to get to them all.
1st possible problem. You are very, very unlucky and get 3/1 splits. Meaning that one card will not have a bonus.
Secondly, you could be running into Skeelz which negate SoA because it doesn't affect them.
You might be running into SoB or SoA as an ability or bonus and not be aware.
Maybe you could get a screen shot or post the deck you use and clans used against you (if you remember) and you could get further help from there. :)