By real world way I meant that you are trained to focus on taking on one opponent and then when you have two, things become a little more difficult. It's like Amanal saidI think the "real world way" is simply: Why would learning something new make me worse at something I already knew how to do?
If it requires you to maneuver to engage only a single target (as the "be a creative player" team argues) then it is functionally equivalent to aim. One other way to make this better would be to upgrade the attack by 1, rather than adding a boost die, for single opponents. This still doesn't solve the "Shii-cho Knight gets worse at fighting multiples" conundrum, though.
Edited by Sporkley