There is something I have noticed with the app when playing against Hard AI.
When the AI plays Explorer and copies it with Stealth Needle...
IF the Explorer is scrapped for damage, then the Stealth Needle is always scrapped, even when it is clearly not a good move to make.
I don't quite understand this, and think it may be a glitch in the AI. Maybe there is something in the programming that forces the AI to copy all actions of a copied card, including the scrapping abilities?