"What bait do you cast to catch a dream?"
—Ravnican riddle

Narcomoeba

Flying
When this card is put into your graveyard from your library, you may put it onto the battlefield.

Ravnica Remastered

Flying
When Narcomoeba is put into your graveyard from your library, you may put it onto the battlefield.

Guilds of Ravnica Promos

Guilds of Ravnica

It was created by the Iquati as a living memory—one that objects to being forgotten.

Modern Masters

Future Sight

Flying
When Narcomoeba is put into your graveyard from your library, you may put it into play.

If Narcomoeba is removed from your graveyard before its ability resolves, you can't put it onto the battlefield.

If Narcomoeba is revealed or looked at while moving from your library to your graveyard (such as with Mind Funeral), its ability will trigger when it's put into your graveyard. It was still in your library while it was revealed or being looked at.