The Servitors Nightshade, Feline King, Spectral LOrd & Magnus Unicorns (most used when player get lvl80+)base stat are wrong. And when upgrade +15 is almost no diference from +0 servitor.
All other Class have upgrades and new skill except Summoner class
look at the base status difference FEline King+0 no buff, i play summoner in a lot of servers
that's why I complain