Set Teaches Thutmose III the Skills of Archery

Nebenräume der hinteren Säulenhalle = Next rooms of the rear columned hall (from Lepsius)
If you look to the far right, yes, Horus is helping Thutmose (aka Thutmosis) III, as well...

This relief is at Temple of Amun, Karnak. Neith is represented abstractly, holding the Was scepter and an Ankh

I first saw a version of this scene in Wikinson's _The Complete Gods and Goddesses of Ancient Egypt_. From there I found a reference to it in a Rosicrucian Journal (No. 1, 2007). That author gave credit to an Adolf Erman, _Life in Ancient Egypt_. I noted in the Erman book that he gave credit to a Lepsius. I tracked Karl Richard Lepsius and his book Denkmäler aus Aegypten und Aethiopien, where I found the original drawing of this (plus several other Set sightings)!

Meanwhile, back to the subject, Set and archery. R.A. Schwaller de Lubicz shows an image with the dual god Seth-Antewy, which is Set and Horus sharing one body:

From _Symbol and the Symbolic_, by R.A. Schwaller de Lubicz, page 37
(Larger available)

What is the bottom element? As we might always suspect, its form is not merely decorative:

It is the hieroglyph for the archery bow!
(From Wilkinson's _Reading Egyptian Art_)

Perhaps, among other possible things, the temple artist is suggesting both the power of Set and the vision of Horus are necessary to be a good archer!

Hans Kontkanen, who visited Luxor in December 2010 has a photo of unusually active Was and Ankh, the Ankh holding a fan and the Was an archery bow.
The Was, which means power (of Set) is there to give force to archery skills.