As seen on the battlecruiser, Akroma, Angel of Wrath
First, the card is placed in a Perfect Fit inner sleeve Then, the card is placed in a regular sleeve The two layers are placed opposite to each other so that the part of the card that is usually slightly exposed is completely covered
The game engine still processes each permanent individually, so prompts that require per-card decisions (such as picking a mana colour when sacrificing a stack of Treasure tokens) will still appear one card at a time
The reasoning behind this was that there were some players who disliked DFCs, a number of them being Wizards employees, and they were worried they'd be a colossal flop
4 It gets -4/-4 until end of turn
Im not averse to games making money