Arheen, Sultai Prophet

0: Exile up to two cards from your graveyard, then put that many loyalty counters on Arheen, Sultai Prophet.
0: Remove any number of loyalty counters from Arheen, then for each 2 counters removed, return a creature card from your graveyard to your hand.
-X: Sacrifice Arheen. Return all creatures with converted mana cost X or less from all graveyard onto the battlefield under your control.