Pact of Maladomini

At the start of each player's turn, that player mills
three cards. At the end of each turn, create X 1/1 green/black Devil Insect creature tokens with
flying, where X is the total number of creatures
that were put in graveyards from libraries this turn.

At the beginning of your upkeep, if you control
seven or more Insect tokens, exile Pact of
Maladomini and return it transformed on the battlefield under your control.