Although mainly used to reduce revival times Volka has some good utility and damage in her kit. Not only does she give every ally lifesteal, she also provides single target vulnerabilities on her ult, hits multiple targets and has a consistent AoE burst. Volka can also be fairly tanky making her work in a multitude of roles. With her lifesteal, debuffs and awakenings Volka she does more than just provide her A1 buff and her damage reduction ability makes her an exceedingly good choice in Guild boss 2.