[Inziladun]

Originally Posted by Zigûr

Sauron could apparently burn with a touch, so perhaps he would not need conventional weapons.

That's interesting. Oddly enough, Gollum, who had presumably seen Sauron personally during his captivity in Mordor, told Frodo and Sam:

'He has only four on the Black Hand, but they are enough.'

TTT The Black Gate Is Closed

Why would Sauron only have had one hand that was black, unless it was intentional? And, tangentially, I wonder if that had anything to do with Saruman's choice of the White Hand as his own symbol.

Originally Posted by Zigûr;687475"

But at last the siege was so strait that Sauron himself came forth"
This was an act of desperation, not a calculated military manoeuvre. Sauron never expected to have to actually fight his enemies.

Almost never. The films portray Sauron weighing into the battle on the slopes of Orodruin as some kind of doomsday for the Last Alliance, but really it was Sauron's final gambit and one which didn't really work.

I see Sauron's coming forth as mainly an act of rage, and revenge. His armies were destroyed, and his ideal of dominion in Middle-earth had been brought to naught by Elves and Men. What better act of vengeance than to kill with his own hands the kings of his enemies?