Priest of Derangment

Whenever Priest of Derangment attacks, put
three +1/+1 counters on it and you mill three
cards. It gains menace until end of turn.
You may play land cards from your graveyard.
Landfall - Whenever a land enters the battlefield
under your control, up to two target instant or
sorcery cards in your graveyard gain Gravepact
until end of turn.