Tenured Oilcaster

As long as an opponent has eight or more cards in their graveyard, this creature gets +1/+0 and has menace. (It can't be blocked except by two or more creatures.)

Menace (This creature can't be blocked except by two or more creatures.)

This creature gets +3/+0 as long as an opponent has eight or more cards in their graveyard.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Whenever this creature attacks and isn't blocked, defending player loses 1 life for each card in their graveyard.

Flying

This creature gets +3/+3 as long as an opponent has no cards in hand.

Whenever this creature deals combat damage to a player, that player discards a card.

Menace (This creature can't be blocked except by two or more creatures.)

Threshold — Whenever this creature attacks, if there are seven or more cards in your graveyard, this creature gets +2/+0 until end of turn.

Menace (This creature can't be blocked except by two or more creatures.)

When this creature enters, mill three cards. Then if there is an Elf card in your graveyard, each opponent loses 2 life and you gain 2 life. (To mill three cards, put the top three cards of your library into your graveyard.)