...and Unity and Ambuscade ;).
So if the expansions have unity and amb, i dont need to buy the ones from the website store?
Unity and Ambuscade were rewards for Kickstarter Backers. They don't automatically come with the expansions. You will have to order them from the website
Ameena was just saying that the Enhanced Edition includes the dividers for Unity and Ambuscade. 
Yes, sorry, I was just creating an additon to Koey's last sentence. You need to buy Unity and Ambuscade's decks separately, but dividers for them will already be provided in the Enhanced Edition box. Mine is still waiting for those decks, since I didn't discover Sentinels till after the first Kickstarter (which means I'm not likely to ever get my hands on any of the promo cards from that time either, like Young Legacy...but those are only one card, not a whole deck so I don't reckon I'm missing out on much). But I'll get them in May 'cause I ordered them as add-ons when I pledged for the Shattered Timelines Kickstarter.
I think the only other way to get hold of them will be through the official Sentinels store. I dread to think what the PnP would be if I tried that...
Unity and ambu have been ordered! Can't wait.