I'll get in on some cards and their advantages in this specific deck starting with...
Excavated Evil! Some new players might think:"WOW! Why would I give a board clear to my opponent and pay 5 mana for it?! That's just crazy!"
As Kripp himself explained, imagine yourself playing against aggro decks such as Shaman, Paladin or Hunter, these decks don't really use board clears and a board clear that does damage even to your OWN minions is just absurd to have. Excavated Evil also denies them in that matter a card draw, its almost like they didn't even draw on their turn if they get Excavated Evil, so I believe this card is absolutely overpowered when it comes to destroying aggro decks!
Deathlord! Absolutely destroys aggro decks, even if some new players are skeptical on why would you give opponent a free minion, just from my experience 8 times out of 10, you will give them only something like a Leper Gnome. Since you're playing a CONTROL deck, Deathlord is absolutely necessary.
Justicar Trueheart! Really? You don't think healing for 4 hp is reasonable? I've played 21 games without Justicar Trueheart, just because I didn't have crafted it at the time. My win percentage was at 71% or 15 wins and 6 losses. This deck is playable without it, understand that, but this card really makes your life much easier. After playing 12 games with Justicar Trueheart my win percentage rose to 83% or 10 wins and 2 losses. This card is really OP when it comes to control, and I think you should definitely craft it.
From BEST to WORST
Are absolute best!
Are absolute average!
Are absolute optimal-in-some-situations-but-usually-bad!
Since on demand I played 10 games on Ranks 15-11 (which is average range most people play on) just to show you how well I could match up against the meta.
As you can tell, it goes pretty good with 9 out of 10 games won.
Average time played from 10 games is 10.1 minutes.
Average turns you'll be playing is 16.6 turns.
10 games is not a enough to make a right call on stats, but we can see here that 75-90% win percentage with this deck is absolutely possible. I myself have NEVER been Legend rank, so someone who has might have even better plays with this deck.