Vlad
Auto-translated
Maybe they aren't bad archers, but blocking (and even more so, killing them) is easy. The first time I saw a Titan in Heroes 5, I liked it purely for its appearance, but in practice, it's only useful if you load it up with artifacts; otherwise, it's useless... And of course, they are expensive. Against this backdrop, the Ghost Dragons of the Necropolis look better.
Although we are getting off topic....
In general, Necropolis units are the best... and if you're lucky, they can kill everyone... but these are just theories; it's better to try it in practice...