Collector Boosters aren't for playing, it's for those who want some solid binder material with far better pull rates than standard play boosters
If the target is legal but not destroyed (most likely because it has indestructible), its controller does gain 4 life.
You can buy the ability to open packs faster, and there are also currencies you dont have to spend money on, and its all kind of confusing in text, but it makes sense and is easy to understand in context, so, for your sake and mine, I am not going to spend time explaining all of it
We're also increasing the game price once the full game is released to reflect the additional content we're adding, so now's the best time to grab a copy
If you start putting in cards randomly, you may not get the result you were looking for