Hearthpwn

You should win against every aggro deck, by turning the board in your favor with cards like Duskbreaker and high-health taunts. Your opponent won't have the minions to recover most of the times. Shadow Word: Death and Twilight Acolyte are good against high attack minions that could kill one of your taunts (great against even shaman's Mountain Giant and *4mana7/7*. Also you won't run out of cards.

Replacements for adventure cards:

- Netherspite Historian: Stonehill Defender, or Museum Curator

- Twilight Whelp: Power Word: Shield, Mistress of Mixtures

- Blackwing Corrupter: is a great card for comebacks, but you could play Convincing Infiltrator, Dragonfire Potion, Mass Hysteria, Excavated Evil, Rotten Applebaum, Sludge Belcher

- Loatheb: any of the 5-mana cards mentioned above.

I created this deck, after the original Spiteful Dragon Deck, which could also win against aggro and wins a lot of the control matchups aswell -  (https://www.hearthpwn.com/decks/1251837-wildboar-spiteful-dragon-priest)