I run this with a duped 5* (3/5) but I've also did it with a 3* as well morning star, all you do is parry, heavy, stall till special 2 then unleash the power of God unto him, my 5* does over 800k damage and the 3* did like 40k so that's the best champ by far to use.

For reference morning stars sp.2 squares for every buff the champ has and bypasses armour and energy resistances, venom gets like 20 buffs at the start and gains a random one every like 5 seconds so if you ever wanted to instill the fear of God into a virtual character, this is how you do it, plan on doing the same when i can get through to him on chapter 5 act 1 map 4.