Four Directions was the secret weapon Kahn had prepared.
Bloodbending could control the fluids inside living creatures. It was indeed an ability with practically no answer, because any living creature would have fluids inside its body and could therefore be controlled.
But as the saying went, without coincidences, there would be no stories. Precisely because its ability to control bodily fluids was so conspicuous, Kahn had quickly discovered an existence that could be called bloodbending's natural nemesis-
Deities.
Deities had bodily structures utterly different from ordinary creatures. They had no organs, blood, or similar structures inside them, but were composed entirely of [spirit], pure spiritual beings.
In other words, bloodbending was ineffective against deities.
When Kahn thought of this, he nearly laughed aloud on the spot, because, by an even greater coincidence, he happened to have four-or rather, one-powerful deities at his side-
Four Directions.
Although Four Directions served mostly as his mount rather than a combatant, that was only because Kahn was so strong that he almost never needed outside help, not because Four Directions was too weak.
To Kahn and the others, Amon was a troublesome powerhouse with considerable fighting skills who had mastered chi-blocking, waterbending, and bloodbending.
But to Four Directions, Amon was merely a waterbender with considerable fighting skills.
In fact, before Four Directions, whose forte was speed, even the part about considerable fighting skills could be dropped, leaving only waterbending.
Now that was what you called a natural nemesis! (Tactical lean back.)
Still, although this answer looked simple, it was not quite that simple.
After all, aside from spiritbenders like Kahn, most ordinary people would never encounter a deity in their entire lives. They would never include deities in their considerations, much less ask one for help.
All one could say was that Amon had