It reads, Whenever Lord of the Void deals combat damage to a player, exile the top seven cards of that players library, then put a creature card from among them onto the battlefield under your control. While mill isnt likely to be your main strategy in a deck filled with Demons, the exiling is definitely nice
In reality, he and the others were being lured into a trap (in the English version, they visit the Shadow Realm)
When the first Worldgorger Dragon enters the battlefield, it will exile all permanents you control
You can't flash it in, but if you put this card on the field, then people will have to kill this before Tergrid comes down or else end up giving you their creatures
You can only use each of the following effects of "Archfiend Emperor" once per turn
There are also several abilities that enable one to draw more cards, earn benefits from having a specific hand size, or reduce ones own hand size to play later from the discard pile called trash