First I'm gonna ask you 2 questions before giving the advice about the classes.
1st: Do you hate your life and enjoy roleplaying as dragons?
2nd: Do you hate your life and enjoy not being noticed by anyone?
If you said yes to the first question, osa is definitely the class for you! Don't forget to tell the opponent to git good or tell him to play a relevant class.
If you said yes to the second question go for trapsram and be almost as much of a cuck as when you go osa.
If you said no to both questions ask for a refund, you wont get to r10 with any other classes so dont bother.
Also an honorable mention goes out to the sacriers who have over 9000 health.
(Only little chance u have is when u pvp on beta where they actually play something else, then id recommend fogger or rogue most fun 1v1 classes to play imo)