Hearthpwn

First time legend. Where I used these changes:  In some way a classic Renopriest with dragons. This version it is a bit over teched (for ranks 10-5 this works well). I’m at rank 3, and have removed Skulking Geist, as I only have faced aggro decks and one big priest, from rank 5. I have used Mass Hysteria. If you are up against an armor class, then Archbishop Benedictus helps and you play for fatigue. Benedictus also helps against big priest, but I think I will remove it temporarily, because of all the aggrodecks. I will try the new Dragonmaw Scorcher, because it is good against odd-paladin.

Edit:
Mulligan for most common matchups:
Vs. Even Shaman.

This is the best matchup, because of the many AOEs. You keep Shadow Word: Death and Pain. Death because 4 7/7, and Pain because Totem Golem is outside your early removal and can therefore do a lot of damage. Maybe keep Dusk Breaker, but you are not sure to hold a dragon, as the list is not packed with them. But Excavated Evil or Mass Hysteria is important as clearing at turn five removes Sea Giant

Vs. Odd Rogue
Keep Potion of Madness and Spirit lash as the first pirates are the most important to remove, else keep Reno and AOEs. The first 3-4 turns really decides if you are going to win, as the loss steam quickly.

 Vs. Big Priest

Most important cards are Potion of Madness for Barnes and Kazakus for polymorph. Moreover keep your combo. You are not going to win this matchup long term. You want to stall there big minions and kill them as fast as possible.

 Vs. Even Warlock

Keep Shadow Word: Death, Light Bomb, Kazakus and Shadowreaper Anduin In this matchup use that they go down to low health to play 7/7s and 8/8 and then try to kill them. You can attack them if you have Light Bomb and make them play pressure cards like Molten Giants as they are easy to remove.