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1. Force only.
2. Vaylin gets a lightsaber.

http://swtorhumanrelations.com/wp-content/uploads/2011/12/the-infernal-one-swtor.jpg

vs.

https://img.gfx.no/1925/1925469/maxresdefault_7.jpg

Vaylin both

Soa both.

Soa's implied to be extremely powerful (took like the entire forces of the Rakatan Infinite Empire to subdue him), but his only combat feat is losing to the strike team of all the protags, after presumably a long and tough fight.