General Grevious is the Terminator!

Think about it: he's machine with some organic bits, he's an unstoppable fighter, he's got a germanic accent (admittedly, his is Vlad the Impaler german, while Terminator has more of an 'I must break you' Drago feel), and in Omnae's "Of Endings" series, he keeps getting sent back in time to destroy/save the past!

Which means to defeat BDE, I'm going to need some sort of crazy factory full of crushing devices and pools of molten metal to push him into.

...sent forward in time. Forward!

Or you need a really hot anti-grevious, like in T3.

i'd suggest staying away from TRF when you get this far.

there is nothing more to see here folks.

*send in the brain erasers.

...