hmmm, never quite sure about costing etc, best have OldTrees take a look at.....oh wait!
I think in general I like the Ambush idea. However, it's quite tricky to see one card by itself since if only one of these cards made it it'd be quite weak, but all together and you get so many new takes on decks and they all become stronger, espec with more and more options of other ambush creatures!
So in that sense quite tricky to judge as a single card :s
Thanks for the vote of confidence.
This series is intended to be judged individually as if only one of these would be implemented. Think of it as refining an voting on which version of Ambush is the best candidate. Each card would have a different taste and scope if it entered the game. One of the goals if this series is for me to investigate the community.
In that case, I think it's UP. Both cost one less perhaps. the way I see it (very roughly!): 3 (for attack) +0 for HP + 0.5 airborne + 0.5 ambush = 4 (or even 0.6 for airborne and 0.4 for ambush...). similar for upped version.
However that is if this was the only creature in the game with ambush. Obviously the more creatures with ambush, the more valuable the ability becomes, and so the price goes up....
If you're looking for the best ambush creature, then I think a low ish attack cheap one which you can fractal, play loads quickly etc to make any real use of ambush. Or something like Decoy, where you can give all your creatures ambush.