Hermes, the Dead's Guide

0: Reveal the four bottom cards of your library. Put one on the top of your library and the rest into your graveyard.
-1: Look at the top two cards of your library. You may put a skeleton card from among the into your hand put the rest into your graveyard.
-2: Return up to one creature card from your graveyard to your hand. If that card is a skeleton, put it onto the battlefield.