I wouldn't say stronger. As Lensmen said earlyer, their first fight they fought to a stalemate, and the second fight, Lynx was better prepared and disabled him.
What he said was wrong.
Lynx and Magil (Magus) never fought to a stalemate.
When Kid was a little girl (4-5 years before the events of 'Radical Dreamers'), she tried to avenge Lucca's death.
She decided to sneak into the mansion by herself but she was outnumbered and overpowered and she was eventually defeated and captured.
Magil managed to rescure her by slipping in and out of Viper Manor without being noticed at all (after all, he is Magil of the Shadows...).
Magil/Magus didn't even try to face Lynx, most probably because he knew that Lynx can overpower him.
Lynx only HEARD about the 'shadow walker' who managed to slip in and out of his mansion without being caught.
So when Lynx finally meets Magil in battle, he immidetly pin him down with his magic which obviously overpowers Magil who falls on the floor completly disabled.
Like I said before, in universe of Radical Dreamers, Lynx is stronger than Magus.
RD pales in comparision to CT and CC
I don't agree with this statement, but I guess it's just a matter of taste.