There is a good amount of dark and light monsters, so summoning Black Luster Soldier Envoy of the Beginning shouldn't be too hard. The deck is not budget so I recommend using it virtually instead of using it IRL.
You can use any type of black luster soldier so you can instantly ritual summon another or the same black luster soldier.
I am aware that link summoning soldier of chaos is hard because of Impcantation's effect of not allowing you to summon from the extra deck. It's not impossible though.
Edit the deck so its much cheaper if you want to use it IRL (you don't have too).