Hearthpwn

Great stuff all around. I think Kargath Bladefist is my new husbando. 

Sure. I chose enrage for the simple reason that it would only activate once.

Suppose for whatever reason you had two on the board with full health and then played Whirlwind.

If it was 'whenever this minion takes damage' that would be a little too much don't you think? I mean, I could be wrong but, that just seemed like too much to me.

Edit: okay, after some reflection on the enrage keyword, I realized I Interpreted it strangely. I see now it's used to mean 'for as long as this creature is damaged, this effect is taking place', whereas I had thought that it meant 'when this creature takes damage, this effect activates'. Considering it's description, (specifically: "The stated effect activates when the minion is injured") maybe it's not too difficult to see where I got confused. Though this certainty sheds some light on why I find enrage's pool of effects to be so... boring...

I think this card would easily be fair at 0 mana.

I would argue that this card's nearest analogue is Totemic Might.

1) Both cards have a prerequisite to cast. (which can be a big deal in a game with only 30 card slots)

2) Both cards have synergy with their class's hero power, but there are also other class cards that they can be used on for better value.

Shield Slam might also be considered an analogue for these reasons, though I think it's cost could be justified by the fact that it deals direct damage.

Assassin's Blade x 2 are a reward for raising a rogue to level 2.

Golden Assassin's Blade is a reward for raising a rogue to levels 32 and 34.