cheating is something you do secretly. Every player is aware of them and, when you face a certain charc. the game itself tells you what skill they're using or, if not, you may assume like yugi's destiny draw, but you can counter it.
Divine Advent is obviously AI skill. The Slyfer skill might be obtainable, but it is not worth to use, you just give resource to your opponent to remove your Slifer and possibly OTK you.
Anoymous
'k
