Changes to the rules starting with the letter G (Graal and Galtran).

Here's another suggestion:
- at the start, when playing as Flax-Necropolis, you cannot place a Grail.
- at the start, when playing as Inferno, you can place a Grail anywhere.
- at the start, when playing as any other faction, you can only place a Grail in the starting castle.

This would also help balance the factions, as Tower and Inferno are not very popular choices.