GC2CS challenge edition pc version

some players want to play the game extra hard.

so we introduce you the challenge edition

Let's see if any of you can actually pass trough the Iron Wizard Mode in this version.

besides the rarity drop rate is also nerfed. 1 to 2 inetead of 1 to 20

https://drive.google.com/file/d/1kqGj7cvSQppykSQbOi-T2PbnhSffun4V/view?usp=sharing. but in order to prevent this hacked game into a repetitive grindfest. the shadow core drop is increased.