This card is bad. Here's why:
Let's say I secretly bid 2. The corp has an equal chance of guessing right or wrong.
If they guess right, your gain is -2.
If they guess wrong, your net gain is 2.
If we average that we will make an average of 0. This isn't worth the risk.
This card is fun. Here's why:
On the 50% of the time you get this to not take your money (I have yet to get this to happen of the three times I've used this card), You get a lot of money, assuming you spent a large portion. What makes this fun is that you don't know if this is going to happen.
So, how do you make this card even more fun?
1: Deboot it! (Play cost set back to 2. Additional text: "Gain 2." (triggers before bid). Now you get some extra bucks to play you Psi game.
2: Play it when your broke anyway: Dio's secret sauce.
My rating: 2/10 fun bad card.