In our campaign, me as the Imp, had tech superiority; a weak choice I might add.
heroes were Gideon, garkhaan, Jyn, and Mak.
Wounded Jyn, then Gar (a huge problem when wounded), Gideon, and never got close enough to Mak.
Things ended painfully for Darth Vader when Garkhaan maxed a focused red, red, yellow attack while wounded and DV rolled a pair of single block. Basically cleaved Vader in half.
Mak and Gideon are an truly evil combo; together they cancel the best tricks of the tech superiority class deck.