Hi there! Welcome to Dekaron Rising!
I'd like to consider myself a decent Segnale player, so let me share my thoughts on this class.
On this server, Segnales are balanced and can be decent team supporters if played correctly. However, Segnale equipment is scarce; it's also difficult to purchase armors individually.
I must say that before you can fully compete using this class, it'll take time and/or some of your resources (especially if you're quite impatient when gearing up). Having said that, once you've completed your gears, you'll surely love playing the class.
If you wish to learn more about Segnale on this server, feel free to browse through my Segnale guide (which is still a work in progress). Let me know your thoughts on this!
I wouldn't go as far as saying OP chars can't kill a Segnale. From a realistic point of view, geared Segnales can only somehow survive against full damage build classes (e.g. AK, Summoner, Aloken, Bagi). This is understandable given the true nature and complexity of the Segnale class. However, against players that aren't glass cannon build, Segnales can survive and — under the right circumstances — even kill other classes.