In fighting, you tend to wait for your opponent to make a move you can exploit. He will overextend, go off-balance, or choose a stance that you can take advantage of, or have training to counter.
Are there any RPGs that use something similar? Instead of "rolling to hit vs AC", I would like to try something like "I take a high guard and wait for him to attack." being a viable option.
Maybe failures to hit by a certain amount indicate a loss of balance = becoming vulnerable to certain kinds of attacks or combos?