In recent days, Castle Clash: Königsduell (the official Facebook account for German server) had 2 very interesting posts. One of them find its way to the english Facebook a week after (the Bonuses in a year by title infographics), and the other one is a spreadsheet with the attributes of the summons or companions of heroes.
Simply, the stats of companions based on hero level, if they are evo or devo, and in the case of Ornithopters, based on Gunslinger's skill level.
The spreadsheet has the info of Attack, HP and/or Mov Speed for:
*Beast Tamer's Grizzly (on the second page).
I hope, like happened with the infographics, the spreadsheet could be posted in english too.