Racheal, the Tainted Melody

Flash, flying, first strike, deathtouch
Invoke, delve ( Creatures'spells from all graveyards
can help you cast this card. Each card you exile from
a graveyard pays for {1}.)
If a creature is exiled from a graveyard, you may
cast it this turn. It enters with a bliss counter. Creatures with a bliss counter have afterlife 2.
Spirit, demon, and devil creatures gains +2/+2
and lifelink.