I brewed about Paradox Engine in a Kydele/Thraisos deck on Gathering Magic and it should be up Thursday if you want to check for cards I think would get brewed alongside Engine in that deck
I have always found comparing deck lists that are trying to do much the same thing within the same format to be rather educational
Occasionally these can be surprisingly powerful outside of Limited, completely defining constructed formats
Cast Spike on Turn 3 or 4, activate her ability to grab Mind Twist at the end of the opponents turn, and and watch all hope drain from their face as you put them in top-deck mode before the game has really even started
Some people have referred to this as Combo-ing off, whatever that is
However if you instead take that 5,000 gold and join a Quick Draft Tournament, you will earn 4 packs and 50 gems even if you lose every single one of your three games