If a player casts a spell that targets multiple permanents their opponent controls with ward, each of those ward abilities will trigger. If that player doesn't pay for all of them, the spell will be countered.
Everything that is specified by the effect creating the original token or tokens will also be true about the additional token or tokens created by Adrix and Nev's replacement effect. For example, if an effect tells you to create a token "tapped and attacking" the additional tokens will also be tapped and attacking. Similarly, if an effect creates a token and puts counters on it (such as a Fractal token) the additional token will also get those counters.