The ShiftstonedEternal Power Calculator is a deck-building tool that visualizes your odds of drawing enough Influence and Power based specifically on the cards found in your deck.
I think Haunting Scream is not very necessary in this list as only Bloodcaster and Gorgon can be used and only Gorgon will have any value. Also, I dislike Scourge of Frosthomer I played several games with it in my Feln Control list and it didn't helped me anytime.
Thanks a lot for your support! Maybe I can cut the bloodcaster and use some other cards to survive in the early game. I do find Haunting Scream is sometimes stuck in hand. Hoping to get more advice from you, thank you.