I’ve always found boar to be underwhelming. I like playing a style of aggro reva where my opponent has to answer my plays and while tusk boar is good for sending some damage face, at the end of the day, it doesn’t help me build a board or warrant an immediate answer because it just comes back to hand. It is good in the mirror to pick off heart seekers so one could very reasonably swap some cards out for tusk boars. I think if I was to run another 2 drop though it would be either Healing Mystic, Primus Fist, Jaxi, or Flameblood Warlock before I put tusk boar in.
No blaze hound is about the only interesting thing with my deck. I found that on the climb to S I was playing versus a lot of aggressive decks and giving my opponents cards when they are playing aggressive decks is a bad thing because Kara’s one weakness is that it can get rushed down. In slower matchups the blaze hounds are great, but I just didn’t face many midrange decks. Spell jammer is equally as bad when it comes to giving my opponent cards, but its a better card in situation where I find my handsize low because the effect triggers more often. It also has better raw stats than does blaze hound so it is better in terms of how often it winds up sticking on the board.