You should try fighting dual Slys, or dual Ratchets, or dual Coles (doesn't even matter which version they're playing), or dual Kratos, or dual Jaks, or dual Fat Princess, or dual anybody really.....except Radec. Radec sucks.
Psh, Raidens are cake against my Nariko. They're always open, and seeing so many of them makes them more predictable than other characters. What I really hate are dual Drakes, dual Kratos, or dual Sly's. Now THAT ruins the game. Double barrels, or double chain blades, or double invisible countering is just a huuuuuuuge pain in the @ss.
"The more you sweat in training, the less blood you lose in war."