Kicker — Sacrifice two Gravekeepers

When Gravekeeper's Supernaturalist enters the battlefield, if it was kicked, it gains +X/+X, where X is the combined converted mana cost of the sacrificed creatures.

While you control Necrovalley, both it and this card gain Hexproof and Indestructible.

{3}, {T}: Search your library for a Gravekeeper creature or a card with Necrovalley in its name, reveal it, put it in your hand, then shuffle your library.