Optimizing a level 20 druid for a duel!(3.5)

[PinkysBrain]

Planar shepperd is kind of the obvious choice. . . anything else? Anything not so broken it should have been banned from the game a long time ago? lol

You can check some of the ToS high tier caster fights to see what's left after all the obviously broken stuff is banned.

(Hint : win init, anticipate contingencies, have tricky contingencies which can't be anticipated ... also, don't die when killed.)