[quote=The Silver Paladin]
I tried creating Emperor Constantine Earlier,. and then my PC Crashed. I cannot make original Servants. Fine, I'm leaving! good day to you! Have a good 2015, and I wish all the best!
[/quote]
If you never try, you will never know how to make servants. Chances are that if you know how to roleplay as a servant, you will also be able to make one, even if its powers are bland or unbalanced.

Still, roleplaying is not about powers. As long as you can use your tools well, you are good to go.