Nether Spirit - mtg.wtf

Creature - Spirit

At the beginning of your upkeep, if Nether Spirit is the only creature card in your graveyard, you may return Nether Spirit to the battlefield.

Four walls and a roof won't provide safety from that which is buried.

2/2

2019-06-14 If Nether Spirit isn't the only creature card in your graveyard as its ability resolves, it remains in your graveyard.
2019-06-14 If Nether Spirit isn't the only creature card in your graveyard as your upkeep begins, its ability won't trigger. You can't take any actions during your turn before your upkeep begins.
2019-06-14 If you have two Nether Spirits in your graveyard, they stop each other from returning.

mtg.wtf