Hearthpwn

Pure Arena card, where it's very good.

interesting, but I don't think it's great in priest.  Most good priest decks are control and it's a bit slow for hyper aggro.

too slow, but can see play in arena 

Not good, it's too slow and doesn't really synergize with anything Priest wants to do.

Looks like trash as a priest card.

Compared to something like Mischievous Imp this card is terrible.  I know they cost different mana, but one is a 4 mana 6/6 (in stats) which might be 9/9 and the other is a 3 mana 3/3 which might give you another 3/3 at some point.

Just not good enough

this is only true if you disregard the deathrattle manipulations pries has (or may have in the future), priest hero card replays every deathrattle effect, priest can have cards that resurrect any undead died, so it is possible (if Blizzard wanted) that this effect triggers like ~15 times in a single game, we dont know yet, dont dismiss this card at face value, comparing to Mischievous Imp directly makes little sense

too fair to be usefull.......... there are a bunch of minions that allow you to get same stats easier. Hope for undead and deathrattle combinations.

Kind of odd.  Value is sort of there.