Seravy/Drake, love the game and applaud your skill and dedication. Thank you.

(Caster v6.0.7) I cast focus magic on some chaos spawn that were undead, being converted via life drain. The chaos spawn did not gain the ranged magical attack. Bug or feature?

I'd upload a save game, but all the extensions I try for images are unacceptable.

From the realms beyond forums:

Seravy Wrote:
Technical limitations.
Gaze is a ranged attack that has melee range, like thrown.
A unit can only have one ranged attack type so if it has gaze, it cannot use proper ranged attacks.

It's probably worth mentioning gaze attacks have an invisible "0 strength" attack power, so when the gaze attack is being done, in addition to the normal effect, it'll also perform a normal melee attack that is of the Nature realm and has 0 swords as strength. In theory Focus Magic should raise that zero to 3 but that makes very little difference.
In case of Chaos Spawn though, the Doom part of the gaze uses the attack strength variable as far as I remember so Focus Magic should raise the Doom Damage by 3.

Gaze is once for all enemy figures, Touch is once for all own figures.