I still struggle to comprehend why people are wanting TBN changed instead of Oblation. Altering Oblation wouldn't be invasive in the slightest, as it would only require one expansion worth of balancing along with having zero reliances on a resource outside of being a typical CD. Plus, Oblation could be given additional effects that could more easily shore up TBN's weaknesses (lack of mitigation in trash pulls and multi-hit TB's) compared to the alternative.