That's why i mentioned needing a splitpusher to beat a splitpusher, none of them can really be beaten 1v1 playing anything else.
Altho you could just send a CC/waveclear mage, he won't go near that. For no matter of strong Trynda is he can't really push anything himself very quickly without minions while being shot by both a mage and a tower.
But, again, as any other splitpusher Trynda just cant be beaten 1v1 by anything else, and i do understand why people find this frustrating.
I myself have forced teams to surrender while playing Kayle and Jax, in one game in particular they were winning all the fights but the moment i got a single minute i broke through towers everywhere. At some point where they finally got 1 inhib from my team i had taken 2 of theirs and 1/2 of their last's ones tower.
I was going like 5,4,3 something, but i forced the enemy team to surrender just because there werent able to do anything to stop by splitting since they didnt have anyone capable of beating me 1v1, heck they even lost 2v1 when their support and marksman tried to beat me.
Playing Kayle......i´ve lost count of the times i´ve forced surrenders, i´ve even won 1v3 fights on a few rare occasions. It was really, really boring to play but damn if it was powerful.