Would it really be that hard? Zanz could put one mark on the field at the beginning of the game, why can't he put 3? Zanz could make the player have 100 hp then why not 200? And FGs do exist, so the mechanism is already there, all he has to do is changing some values. It just needs a code to make the switch beween normal player and FG. It's much more practical than a card testing mechanism that could test cards that don't exist yet(no offence to bored_ninja777, just making a point).