The rares and legendaries you get from the tutorial campaign all suck. You can safely dust them all to make this deck.
You may have noticed that the deck has only 61 cards. Well, the rest aren’t very important. Fill it with any well-stated 1-3 cost single influence green/black units that you have to stall out until you draw your win cons. (Good example:
Argenport Soldier), lifesteal units preferred.
Put in any Justice-Shadow dual powers that you have.
This should carry you through the early stages of gauntlet with ease and have a decent win rate in Master gauntlet.
It is recommended to dust the rares and legendaries you get from packs to improve the deck for higher efficiency.
It is recommended to do two to three forge runs with your gold since the first few runs are very easy and give a ton of free cards. Then save up 25000 for the campaign “into shadow”.