I took a look at the verore and factionless
-move alpha one from usually bad to good. his damage reduction ability can destroy an attack zone if you have a turn to buff him.
-move shikana into best
-tech knight is below average or even bad
-switch oblivion and subjugated dragon. Because of random picks I doubt anybody will able to draft enough spells to play oblivion reliably.
-hydra is not a rare card
-pras is below average
I didn't do an update for the small patch, so there are some cards that could use a promotion.
-I could see Alpha one in the avarge slot but he is still a giant resource sink, but he isnt on scramble level anymore.
-Shikana needs a promotion. Maybe not best but it is devenetly better then where it is right now.
-Oblivion is increadably strong and a great winning condition. It's hard to rate cause it depends where in the draft you are able to pick it up. In my experience you end up with about 20 ability cards in a 3 purity Cov draft anyway. If you can pick it up befor 21 pick you are able to pick around it. As a last pick you have to see if you can make it work or not. I'd say with 23+ ability cards you should be fine.
-you right about tech knight. I will move him to below average but on the other hand I is still better then balanced warrior.
-pras is gets a lot of flak and ofc there are mostlikely better picks but he is better than people think he is, expecialy with a way to charge him in and the combination of his factions give you at least to ways of doing this. If you can hit the fortress with him once and kill of a commander he is worth the cost. If you cant charge him in he at least makes the next moves of your opponent very predictable cause getting hit by him in the face isn't an option. Given his faction combination you wont see him that often anyway. Let's just say in a deck that goes more for the CoV haevy he is below average and for a deck that is more on the FD side he is average.