Hearthpwn

"Picked 100.00% of the time in Arena rounds"
-_-

I don't know if I'd say this is a great card vs aggro; most of the time I would silence something like Tazdingo or Belcher with an Ironbeak Owl. Since this isn't immune to battlecries, it doesn't seem particularly valuable in that role. It also is killed by Stampeding Kodo, unlike its alternatives.

Where I really think it has value is in a control deck late game. It can't be removed by spells, so when you drop it your opponent has a few options

1) Attack it with small minions, who will either be killed or weakened enough to become susceptible to AOE

2) Attack it with a large minion, meaning that you get better initiative with your large minions during the next turn's trades (for instance, if they attack it with a giant, that's one giant who now has 6 health and isn't able to kill one of your beefy minions this turn).

3) Waste a valuable late-game silence battlecry (Ironbeak Owl or Spellbreaker)

All in all, not an amazing card. But fairly useful for 4 mana, and definitely more useful the less minions your opponent has on the board. The fewer options your opponent has for attacking, the better trades you will get.

We have 12 pages of "Destroyer of Worlds," I think it would be okay to stop now.

Haha jk

Destroyer of Worlds

Value with Blessing of Kings