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At the beginning of each player's upkeep, that player loses 2 life and draws two cards.

Creatures you control can't be blocked except by legendary creatures.
Whenever one or more creatures you control deal combat damage to a player, venture into the dungeon. (Enter the first room or advance to the next room.)

A deck can have any number of cards named Shadowborn Apostle.
, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card, put it onto the battlefield, then shuffle.

Changeling (This card is every creature type.)
: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

Artifact spells you cast cost less to cast.

When this artifact enters, exile target card from a graveyard.
, , Exile this artifact: Exile all cards from all graveyards, then draw a card.

This creature can't attack unless defending player controls an Island.
When you control no Islands, sacrifice this creature.

Exile target creature. Its controller gains life equal to its power.

Whenever this artifact or another artifact enters, put a charge counter on this artifact.
, , Remove a charge counter from this artifact: Draw a card.

Each player sacrifices all artifacts, enchantments, and nonbasic lands they control. For each land sacrificed this way, its controller may search their library for a basic land card and put it onto the battlefield tapped. Then each player who searched their library this way shuffles.

Flash
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When Ty Lee enters, tap up to one target creature. It doesn't untap during its controller's untap step for as long as you control Ty Lee.

As Rukarumel enters, choose a creature type.
Slivers you control and nontoken creatures you control are the chosen type in addition to their other creature types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.
, : Create a 1/1 colorless Sliver creature token.

Visit — Choose one.
• Create a 1/1 red Balloon creature token with flying.
• Sacrifice a Balloon. If you do, target creature gains flying until end of turn.

This land enters tapped unless you control an Island or a Mountain.
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Destroy target creature or enchantment.

Menace
Whenever Obeka deals combat damage to a player, you get that many additional upkeep steps after this phase.

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If you control two or more other lands, this land enters tapped.
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: Until end of turn, this land becomes a 3/2 red Goblin creature with "Whenever this creature attacks, create a 1/1 red Goblin creature token that's tapped and attacking." It's still a land.

Flying
Apocalypse Demon's power and toughness are each equal to the number of cards in your graveyard.
At the beginning of your upkeep, tap this creature unless you sacrifice another creature.