I think it would be fun to have some pre-programmed in-battle taunts u could throw at opponents. The same way NPC's yap at you. I know you could easily type them in but sometimes you cant type fast enough while battling. May have the option to program your own. IE: "F4F?", "Come at me bro!","NOOB!!". This would also be fun as a last second insult if you lost as well.
No offence but this is one of the most trollish topics to bring up in EpicDuel- why promote bad sportsman/gamership? We have enough insulting going around from unworthy losses/wins and people of different cultures insulting each other because they can not relate.