Remember Today

Target opponent loses X life and you gain X life
where X is the number of creature cards in their
graveyard. You lose Y life and target opponent
gains Y life where Y is the number of creature
cards in your graveyard.
Cycling {w/b}{w/b}
When you cycle Remember Today, creatures you control get +1/+1 until end of turn.
Flashback: Sacrifice 3 creatures.
"Never again will the lands of my people fall into
the Enemy's hands!"