Tarn, a Decepticon who took hits from Grimlock, avoided a fight against Monstructor. Tarn is a Phase Sixer, according to James Roberts. () For reference, Tarn break Trailbreaker's forcefield. Trailbreaker's forcefield took the destruction of the Necroworld. Necroworld is a mirror of Cybertron. Necroworld is hollow. Tarn can fight against Overlord. And can take hits from Grimlock. And Tarn uses Double-Barreled Fusion Cannon, that is twice as powerful that the cannon Megatron uses.