Library-Bound Mummy

When Library-Bound Mummy enters that battlefield you may gain life equal to its power
and draw a card.
Eternalize {3}{w}{w} ({3}{w}{w}, Exile this card from
your graveyard: Create a token that's a copy of it,
except it's a 4/4 black Zombie Cleric with no mana
cost. Eternalize only as a sorcery.)