Ragavan proved too powerful , Voladren Epicure seems good in a few types of decks
Dragonlord Atarka invalidates a lot of what led up to that point and has little counter play, Kogla and Yidaro is a modal card with a strong ETB
Adeliz was too weak, Baral and Kari Zev seems interesting
Painful Truths offers cards with little selection and a high cost of tapping your splash color, Shadow Prophecy is an instant and provides better selection and isn't a tax on splashing (but does reward you for splashing more colors)
Sleight of Hand -> Consider feels like an upgrade
Spear of Healiod is an artifact, but seems worse than In the Trenches on average
Inspiring Overseer was a little boring, Combat Thresher is a neat payoff for blink strategies and an artifact
Corpse Churn -> Urborg Reposession is just a test run
Naturalize mostly is a sideboard card whereas Tear Asunder could see main deck play. This might be too powerful as GB is already strong usually
Faithless Looting was an odd card to have around because it's been banned for so long, Invasion is the first card interesting enough that I wanted to move around a bit.