Soulcipher Board

This artifact enters with three omen counters on it.
{1}{U}, {T}: Look at the top two cards of your library. Put one of them into your graveyard.
Whenever a creature card is put into your graveyard from anywhere, remove an omen counter from this artifact. Then if it has no omen counters on it, transform it.

Rather than consort with demons, the Quietus Cult seeks wisdom from the dead.

Cipherbound Spirit

Flying
This creature can block only creatures with flying.
{3}{U}: Draw two cards, then discard a card.

Soulcipher Board / Cipherbound Spirit