Cephalid Inkmage

Creature — Octopus Wizard

When this creature enters, surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Threshold — This creature can't be blocked as long as there are seven or more cards in your graveyard.

Once Cephalid Inkmage has been blocked, reaching a total of seven or more cards in your graveyard won't cause it to become unblocked.