Grixis (Planes) [Planechase Anthology Planes] 213 When Ancestral Knowledge enters the

When Ancestral Knowledge enters the battlefield

cannot be activated

if an opponent controls three or more creatures

You can banish 1 LIGHT or DARK monster from your GY: Special Summon this card from your hand

This card’s name becomes “Harpie Lady” while it is on the field or in the Graveyard

Grixis (Planes) [Planechase Anthology Planes] 213 When Ancestral Knowledge enters theSet: Planechase Anthology Planes Type: Plane Alara Rarity: Common Blue, black, and or red creature cards in your graveyard have unearth. The unearth cost is equal to the card's mana cost. (Pay the card's mana cost: Return it to the battlefield. The creature gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.) Whenever you roll {CHAOS}, put target creature card from a graveyard