Healing and surviving Howling Abyss
This guild is the only wining formula that I have found so far for Kindred.
It will give you Max cooldown, some armor, and Magic resist. The main goal it to keep your team healed.
Your damage will slowly stack up when you get your marks so don't worry about that. Really focus on surviving by healing your team mates.
Also with the gold income passives you should be able to finish your build.
Good luck surviving.