I would go with Dr Falkenstein over any of those 4* on the list because in mono he is -16 Opp Attack, min 8
Since it's a mono deck, Dr Falkenstein. But out of the ones you listed, Greem or Manfred.
I was trying to stay away from Dr Falkenstein because he only has five damage which is why i dont like Corvus that much but i'll save up for him thanks guys any other advice would be much appreciated
Corvus has only 3 damage... 5 is almost double.
Frankly, only one you have any reason to change is Lorna, and even then only if she doesn't fit your playstyle. And even then you'd have to choose from Andy Ld, Cley, Danae, (Deebler), Snowflake (and Zeke).
Greem and manfred both look good, although manfred is a little harder to use.
Jay,Greem,Corvus n Manfred are all good cards......u need to try each one of them to see which one suits your style of play.
I would run Greem/Manfred depending on play style then Praxie --> Dr Falkenstein and Lorna --> Liam
Mono skeelz? it is no brainer, pick dr falkenstein
don't worry, his price will go down in time (his price will go down every 2 weeks until it hits the point, I think around 2-3K?)
if you want more damage, I suggest to change praxie or lorna to zeke