In the map Hadesha the lvl3 ruin up in the left corner seems to be impossible to open when equipping the Eye of KGB, instead the game gets stuck in the dark tinted screen before the window opens and won't get any further. If I unequip the Eye it works normally but I have tried to repeat it several times and each time I open it with the Eye equipped it crashes.
May be, should create another item 'Eye of Greece' which let a hero to take money from all allies in team game, the same way as Greece do with other EU countries
This should be not item but a kind of ability money can buy, for example you decide to attack an FFA-game opponent which has NAP with you but in this case you automatically send him 5000 gold or so, if you have such sum. Difficult decision this would be.
It basically looked like a normal fight against another unit on the ruin square but with the hero making use of her undead lore as battle value. I tried it once again in single player and the same ruin messed up the game yet again, this time without the eye though.