Right, but if you play a hypothetical
minion that reads "this
minion's twilight cost is -1 for each other
minion you can spot." He correctly doesn't include himself towards spotting for the cost reduction.
On the Regular, you pay the cost "shadow: exert
uruk regular to play an uruk-hai". The it reads "
its twilight cost is minus one for each other uruk-hai you can spot". In other words, the "each other" or "not including" clause it being applied to the uruk being played with the regulars ability just the same as my moria minion example would be, rather than the Regular himself.