Defender (This creature can't attack.)Whenever you discard a card, you may sacrifice Pitchstone Wall. If you do, return the discarded card from your graveyard to your hand.
HasteThreshold — As long as seven or more cards are in your graveyard, Centaur Chieftain has "When Centaur Chieftain enters, creatures you control get +1/+1 and gain trample until end of turn."
When Gravegouger enters, exile up to two target cards from a single graveyard.When Gravegouger leaves the battlefield, return the exiled cards to their owner's graveyard.
Whenever Cephalid Illusionist becomes the target of a spell or ability, mill three cards., : Prevent all combat damage that would be dealt to and dealt by target creature you control this turn.
FlashThreshold — As long as seven or more cards are in your graveyard, Teroh's Vanguard has "When Teroh's Vanguard enters, creatures you control gain protection from black until end of turn."
Destroy target land.Threshold — If seven or more cards are in your graveyard, instead destroy that land and Rancid Earth deals 1 damage to each creature and each player.
Enchant creatureAs Floating Shield enters, choose a color.Enchanted creature has protection from the chosen color. This effect doesn't remove Floating Shield.Sacrifice Floating Shield: Target creature gains protection from the chosen color until end of turn.
When Llawan, Cephalid Empress enters, return all blue creatures your opponents control to their owners' hands.Your opponents can't cast blue creature spells.
