I say first design cards with positive and negative discard affects.
"If this card is discarded....."
Agreed this card needs more synergies than just Fractal.
maybe my last reply?
No.
Your card enables you to discard cards from your hand. That card would require at least 3 different reliable planned situations where discarding is useful.
Fractal is very situational so it barely counts.
Nightmare (on you) cannot be planned so it does not count.
You need 2 more synergies.