That should read "Untap target attacking creature and remove it from combat." as on Gustcloak Harrier and friends.

Are you intending for this to be used on your own attackers, or things attacking you?

I wanted it to be usable both ways, if that's not too powerful for the cost. (Blue will usually want to use it on opponents, but rescuing yourself from mistakes and combat tricks should be a valid use)

Yeah, either way is okay. Maze of Ith and Ith, High Arcanist work with both (although their templating is rather odd by comparison with the more standard Gustcloak Runner way of doing it).

­Moooo! Mashup: the Gathering randomly selected this card on Multiverse, and now it's one half the inspiration for the card Alaborn Drill Sergeant!

Well, you got one of my more interesting cards; if not one of my set specific ones, at least :)