Tablet of Going Forth by Day

Enchant Player
When a non-Zombie creature without Embalm
or Eternalize would enter the enchanted player's
library, exile and create a 2/2 black Zombie
Token.
If you have a second copy targeting that player,
create a token that is a copy of it instead, except
it is black, has no mana cost, and 2 is the lowest
its base power toughness can be.
"Going Forth by Day Tablets. Thousands a year for
thousands of years. We did it to ourselves."