This is a high cost for speaking with the dead, a dark curse as well, I feel this could also be played by aging the summoner, taking a year of life for every minute, but that is harsh as well. Why not just use a cheaper, less deadly way to call the dead. Now, if you could substitute the target of the curse with another in your place, you could sacrifice children in your pursuit of knowledge leaving them old men or tapped. Oh man, this is harsh if used right. Go to Comment
For a futuristic grim gory setting. Probably powered by some kind of dilithium battery or something similarly awesome. Anyways, basicly a big drill sticking up from a hilt that you primarily use for skewering enemies painfully and drilling through armor.