Nonsense if Karna was a coward then why did they not allow to compete,why did Indra go beg for his Kavacha Kundala,why did Kunti ask her sons to be spared by him and beg for him not to send the Nagastra more than once? Karna was not a coward(assuming the Epics stories as it is),it was pure discrimination from the Egoistic Pandavas,who were cowards,why did Yudhistra do when he ran away from Karnas attacks?Why did Krishna protect Arjuna from Karna? Beema humiliated Karna by asking him his birth and telling him he cant compete with Arjuna,it is u who should read the Mahabarahta,it seems u dont know anything from it.