Alisaie Leveilleur and Alphinaud Leveilleur are two separate cards but are partners which means when you play one, you may search your deck for the other, and add it to your hand, which makes sense since their abilities complement each other
Just taking out any early play is great for control and the various other control cards they will have enable this to scale somewhat better
If you don't, then I get to safely block and kill the Raging Goblin
Others, like Smitten Swordmaster, Raging Redcap, and Youthful Knight are going to be much better if you can power them up (and consequently are much lower picks)
This helps you to chip in for minor combat damage with your creatures that can attack
Collector Booster boxes are currently available to buy from Amazon for $226, or from Best Buy for $280