Thanks for the feedback Rasmus - I'll take it on board and potentially tweak prior to the submission topic opening up (especially Mark of the Hunt; as you put it, it's way too weak compared to Blessing of Wisdom that doesn't even really see play).
Blessing of Divine Fire - on an average minion, ends up being a cheaper Blessing of Kings after 2 attacks, so I think the 3 cost is fair. That said, given the boost it could potentially give to lopsided minions (ie. if played on a 2 mana 1/4, it'd end up attacking as a 6/6) playtesting might be required - that said, that 6/6 would cost 5 mana and 2 cards, so it should still be fine. Probably most powerful thing would be putting it on a 1 mana 1/3 (ie. Northshire), and even then it's weaker than Divine Spirit + Inner Fire (though requires 1 less card) via the coin. But at this starting point the cost should be fine. While it's called Divine Fire, I felt like rolling Divine Spirit and Inner Fire into one card would be waaay too good, so went with a Power Word: Shield level health boost.
Mark of the Hunt - wanted something a bit different than just a stat boost, and while hunter has some other beast related card draw (Starving Buzzard), I don't think they have this particular effect. Very often may just be a 2 mana cantrip with potential upside, but that's also offset by the potential to be useful if you don't have a ready to attack beast out.
I'm a newbie to this process myself - are we able to post card ideas in this preview thread? I understand we'd also have to post in the submission thread, but I'd love to try and get in first with an idea before someone else has the same thought. :-P