Jenova, Ancient Calamity - Deck help

Today, I am looking for players having experience with Jenova (decklist: https://archidekt.com/decks/21524864/jenovas\_witness). This deck should provide a good bracket 3 experience winning on T6/7 on average.

The deck is not supposed to go infinite nor create a poor experience for others. It should be relatively consistent (build +1/+1 counters early, generate value and card draw later). Now I am looking for advice. Do you have any recommendations? Am I on a good way or should I reconsider building the deck at all? I put my best work and research into this project yet feel kind of insecure because I don't want it to be a nuisance to play with.

Thank you to those contributing or just hanging around :)