Fires of Invention doesn't cast second spell
I play Agent of Treachery (this turns first spell). It effect target Fires of Invention for opponent.
After I want play casualties war (this turns second spell) by Fires of Invention.
But I can't cast casualties war by Fires of Invention.
Fires of Invention prevents you from suspending a card after you have cast 2 spells already!
I had a fires of invention and then cast granted to get casualties of war. I then tried to cast it as my second spell for the turn, but it didn't let me cast it with fires. I tried again next turn, but it still didn't work.