Mod does work partially: the holy water doesn't get below 1. But that's about it. You can't buy anything for diamonds because I doesn't let you. Why not mod 10 gems? So you could buy more gems and with that be able to enjoy the game. Else it's just one big grind fest and isn't fun. Levels 1 to 3 are okay-ish, but anything above just kills all heroes and then you're royally fucked.