Just like the Eldrazi warp the worlds which they visit, this card has warped the metagame of almost every format where it's legal
Aided by the demon, he is able to track the creature's current host, but any attempts on killing the creature end up in the host being dead (either from the Honor Guard's hand, or by the creature escaping from its host and taking its life with it)
With a colorful holofoil background and his name set in a faded gold that pairs incredibly well with the rest of the art, its arguably one of the best-looking cards in the set
The principle is pretty simple, blue is for counter magic and card draw while red is used in stead of the more common white or black for removal and some added utility
You certainly cant go wrong choosing any one of them
If so, and all its targets are illegal as it tries to resolve, Three Steps Ahead won't resolve and none of its effects will happen