Can't find a booster guide

[KhaorvaK]

 Hey all! I played back at EA's launch, put too much money into the game, and swore off EA when they cancelled the game.  Now I'm back and excited to be playing again.

 

However, I have some re-learning to do.

 

Boosters, in particular:  I don't see any guides on here explaining what each of them are.  I asked for some help in trade, and got some answers, but not sure what to trust.  I've been told that a booster I received as a reward is a "mini booster,"  and while I do believe him, I don't see it referenced as such anywhere in the game.  I want to make sure I understand what I have.

 

Also, does a fire booster basically provide only fire cards?  Making sure I understand that right.  

[Ultrakool]

Yep that's right, a mini booster is a booster given out exclusively through achievements, you see it denoted with a amii icon, and the separate boosters only contain those factions cards