I also think that this should be specified in the rules. Games usually don't last longer than a month, but sometimes they drag on. And the Grail practically guarantees a 100% victory.
I wanted to ask another question about banned artifacts: aren't the Might of the Dragon Father, Cursed Armor, and Angel Wings banned?
And also, what about the Portal of the Mountains, the Door of Dimensions, Flight, and Water Walking?
I insist on banning Flight, the Door of Dimensions, and Water Walking, as well as Angel Wings. Let the Portal of the Mountains remain. There is a rule in the regulations that requires breaking through the guards, which can be avoided with these spells and Angel Wings.
Water Walking is not relevant, as there is no water, and in general, you can say the same about any spell or artifact...
A question has arisen:
Should we include the TE options - no morale for neutrals and no improved stack?
P.S.: updating the list of participants