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effect: Doug forms a giant floating eyeball out of fire (at minimum) at the top of his AoE dome, or at the top of the tallest structure inside it (such as a building, tree, or mountain he's standing on/beside or within) whichever is taller. This precludes using it inside any kind of enclosed space, obviously, but at least he can always see where he is and what's outside.
The eye can project a beam of fiery-orange light that cuts through any form of fog, illusion, invisibility, etc. unless backed up by more magical power than Doug can bring to bear, which, just as a reminder, can be measured with several kilograms in the m of E=mc^2 at least, and also has just plain phenomenal optical resolution rivaling many astronomical observatories. The problem of air currents and refraction also magically removed if he's using the spotlight beam at the same time.
Subjects caught in the spotlight may also be subject to having their surface thoughts read, enough for a significant combat penalty (on top of any morale penalty that may apply) and being nearly impossible to lie or pull off any form of deception, again unless backed by more raw power than Doug can put into seeing through it or enough skill to make up the difference. A god with Lies or Trickery in their portfolio might pull it off, anyone else is probably SOL.
Not actually a simulacrum of the Eye of Sauron from his world-hopping, and may predate his getting sent on the Walk depending on authorial whim and story needs. Doug has read the books, possibly seen the films, and his power seized onto it as a thematic fitting the song.
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‎noli esse culus
‎noli esse culus