Is it too easy to cast powerful spells with RPM?

[Christopher R. Rice]

Originally Posted by ajardoor

Aye.
It's important for the GM to point out the issues surrounding RPM tools - availability, costs, other actors' interference, etc.

Indeed

Originally Posted by ajardoor

What was the spell? Starting a neighbourhood-wide fire? Creating a disease? Disabling the security measures on a nuclear warhead?

Essentially, a spell that used the Law of Contagion to destroy an entire Cabal. I eventually disallowed it because wow was that powerful only to reallow it using some rules I created to make the cost in line with the effect.

Originally Posted by qchap

As I understand the system, this ritual is not correct. You should pay for explosive damage in case you want the plutonium to explode. If you dont - either GM should just say that the ritual is impossible (you are trying to create plutonium that would NOT explode) or, if he allows it, then the created plutonium just don't explode for some reason - it's magic.
Similar example is shown in How to be a GURPS GM: RPM. So, I think this is not a problem for GM, the system clearly solves it.

This is correct. In RPM you get what you pay for. There is no such thing as a free lunch.