The Night Horrors

Begin the game with this card revealed.
Whenever a creature attacks, it is blocked by
a 2/4 black Horror with deathtouch, double-strike
defender, reach and infect under the defending
players control.
When these tokens die, each player loses 3 life.
Unblockable and 'can't be blocked' creatures
deal no combat damage and are exiled
during the end step.
When you are eliminated, destroy all creatures,
they can't be regenerated and lose indestructible.