Akatos, Legend of Kojk

Exploit (When this creature enters the battlefield, you
may sacrifice a creature.)
When Akatos, Legend of Kojk exploits a creature, create two 2/2 black Zombie creature tokens.
{2}{u}{b}: Surveil 2 (Look at the top two cards of your library, then put any number of them into your
graveyard and the rest on the top of your library in
any order.)