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

So it turns out to be some kind of double bookkeeping...
A guard calculator is allowed, but the topic of the upgrade tree is forbidden...
In the second case - we know the upgrades, in the first - we know what's in Pandora's box...

And as for the Grail - yes indeed, learn to dig, why not? But only place it in the starting town (and if it's already been taken from you - take it back) - and everyone will be happy. You could also introduce a minimum number of visited obelisks - off the top of my head, 5...
And regarding the guards for КЗ and КВ - when was the last time you looked at Jebus Cross? I recently saw angel wings on someone's respawn instead of simple ogres... An orator's hat instead of buratins. For some reason, when control is placed on a respawn - everyone says: "What a layout, my good man." But as soon as someone starts digging (and you still have to find them; you can actually mess up with just one or two obelisks and start digging in the wrong place) - then immediately: "Get him! To the stake! Burn Reddy!".