Another possibility is both players would play each others defence multiple times , eg both players play the opponents defence 3 times. If one player after that has more wins then they move forwards, if both are even score they keep playing one for one attack rounds until one gets a point ahead and wins.
The great thing is we can do things fighting games do now to get rid of RNG element. Eg bestof 10 matches. Both players fight the other ten times and the winner is the one with more wins out of it. In fighting games they often do first to 50 between pros etc too