TL;DR it won't work, because eventually you can just tell people apart by looking at their team.
You know how in sage world battle field doesn't show players name?
Well, your server probably haven't reached this point yet, being new and the teams player use volatile as a result. But in our server, we can EASILY tell who is who by the team they are using. And in the rare event when players use the same team (note that at this point, everyone have some and only some of the rare ninja, thus not everyone C*e the same teams), usually can tell them apart by their power (if you hover your mouse over the enemy portrait on the upper right, it tells you how much power that team have). And you DO need to know their power, this helps you judge how you should act as sometimes maybe a combo can kill something and therefore you should do that, but against others it can't and could potentially be useless (especially if they have healers to clear off whatever CC you put on them). And besides, you can see the hp bar, and usually estimate their strength based on that anyway, since more hp and more power usually goes hand in hand.
Of course, I'm only talking about opponent that matters. For example, as a level 85, I'm pretty unfamiliar with most player below lv 80, because the battle end too fast and too easily for it to matter... well except one, who is super strong for her level, so we all know that one. But you get the gist.