Godless Shrine

({T}: Add {W} or {B}.)
As Godless Shrine enters, you may pay 2 life. If you don't, it enters tapped.

Rule of Law

Each player can't cast more than one spell each turn.

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

Target player draws X cards and loses X life.

Flying
At the beginning of your upkeep, each opponent draws a card.

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

At the beginning of each opponent's upkeep, if that player has seven or more cards in hand, Ebony Owl Netsuke deals 4 damage to that player.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

{T}, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

At the beginning of each player's upkeep, that player sacrifices an artifact, creature, or land.

Put target creature into its owner's library second from the top. Its controller gains 3 life.

{T}: Add {C}.
{T}: Add {W} or {B}. Caves of Koilos deals 1 damage to you.

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Flying
Each player can't cast more than one spell each turn.
Nonbasic lands your opponents control enter tapped.