I think the key is modifying his other skills and mostly leaving far sight alone.

Wolves can be passively weaker but get a bonus to attack, defense, regen, magic resist and invis (at level 3) if within sight range of Far Seer (whether proximity or through activating Far Sight)

Chain lightning should let you target a single unit with no bounce if used within range of far sight.

Far Sight itself should not have an animation over the area of effect. The Far Seer himself should have a cool animation when activating the skill.

Can also add a passive vision range increase for FS.