When Gisa and Geralf enters, mill four cards.
Once during each of your turns, you may cast a Zombie creature spell from your graveyard.
When Gisa and Geralf enters the battlefield, put the top four cards of your library into your graveyard.
During each of your turns, you may cast a Zombie creature card from your graveyard.
"These fiends are slightly less tolerable than you."
"A sentiment that warms my heart, sister."
