JamesLTR

I have an idea that may or may not seem good to you dependin on how much you're willing to change this and also how many differenct curses you want. Up Curse of Misfortunes to 4 for starters. Then you need to find a way to drop either red or green (red would probably be better in my opinion) and instead have blue. With blue you can have more draw cards similar to what red gives you, including amass the components, this and lead the stampede are going to be key!
If you do it this way, then you can run curses from every colour without actually having every colour of mana, because you have the witch and misfortunes to find you the others and put them straight into play. Just means you get more diversity with your curses, and if you draw them, you can still return them back to your deck with amass the components so they can be searched out again. :)