I took a Keleseth tempo n'zoth priest list that my friend Katsu_HS gave me and I replaced the N'zoth package with the dragon package. It has been working really well and I climbed from around 500 legend to rank 80 legend with a 60-70 percent winrate. I will post a guide if this gets at least 20 upvotes.
EDIT- Im so sorry I did not post a guide yet! I completely forgot I posted this haha. I came back and saw it had 205 upvotes and was in shock. THANK YOU ALL FOR SUPPORTING MY DECK! I will come out with a guide soon!
Against the Aggro decks listed above you want to gain board with your early minions and win by running them out of steam. Against Tempo Rogue and Zoolock you may have to maintain board and wait for Shadowreaper Anduin to win. Against rogue you should watch out for Cobalt Scalebane, Bonemare, and Vilespine Slayer. Against Zoolock you should watch out for Bloodreaver Gul'dan
Against Control decks you usually want to gain early tempo and push damage to face. You should be able to finish the game off with Shadowreaper Anduin. You usually want to win fast against decks such as Standard Razakus, Jade Druid, and Quest Mage.