Slaanesh Power up question

By TheVoid3, in Chaos in the Old World

Ok me and my friends couldn't figure out why the power levels on everyone's character card goes up to 12. Tzeentch might be able to get to 12 if he upgraded to 7 default power and played 5 drain power cards in one turn. But i'm not even sure if there are 5 drain cards in his deck. So my question is with Slaneesh's power-ups Power of Pain, Power of Pleasure. Both cards say to add 1 more power level and if you have the corresponding card, add 3 more power (in total). We couldnt figure out if it meant 3 in total per card, or 3 in total period. We decided to just add 3 total, and have a default power level of 9 because 12 seemed rediculously overpowered. But that begs the question how does one get to 12 power if not with this powerup?

Power of Pain gives one extra point.

Power of Pleasure gives one extra point.

If you have both, you get an additional point, for a total of three extra points from the 2 cards together. This brings your total to 9.

There is no way i the game I know of to increase your points per turn to 12, but there will certainly be expansions.