Tyrannoraptor
First starting with Edward Cullen vs Nam-Ek and Bella Swan vs Faora while the Volturi shall be featured in the 2nd round (as Jane's signature ability like Pain illusion may bypass conventional durability) if Edward Cullen and Bella Swan are totally screwed.
Round 1: Edward Cullen and Bella Swan vs Nam-Ek and Faora.
Round 2: this time with the Volturi included.
Round 1: Edward Cullen and Bella Swan vs Nam-Ek and Faora.
Round 2: this time with the Volturi included.