The article from IGN doesnt clarify whether these new cards from the Scene Boxes will be available anywhere else, but it is likely that normal versions of these cards could appear in booster packs of the sets Holiday Release
Each player chooses two cards from the pack and puts them face down in front of them, then passes the remaining cards to the player on their left
If its a nonland card, the creature thats exploring gets a +1/+1 counter, and then you choose whether the revealed card stays on top of your library or goes to the graveyard
There are many chances that I'm 5-20 during a turn and winning 5-0 the next turn: this can be possible using Consuming Aberration and Artful Dodge (who has an awesome flashback ability), but if I can't draw Consuming Aberration , Wight of Precinct Six is very useful, and cand do both defense and attack
Keep in mind that it aint that deep, brah