Roderick is the unstoppable beasts of UR imo. Nero and even revenged Ymirah have to pill 9/10 just to TIE him if facing mono. He's there to win rounds, and is best countered by DR (and oddly a half-decked Joan Cena or Neeck)
Awhile back, someone did a quick analysis of big cards, and (if I remember correctly) Roderick was in the lead by a long shot, followed by Guru and the Fang Pi guy. Then came the rest ending with General Cr (who lost versus everyone due to his 7 pwr).
(I did a quick search and found the post: Big cards Versus chart . Not going to change my above message, as it was generally correct).