Yawning Portal — You gain 1 life. (=> Dungeon Level)

Dungeon Level — Scry 1. (=> Goblin Bazaar or Twisted Caverns)

Goblin Bazaar — Create a Treasure token. (=> Lost Level)

Twisted Caverns — Target creature can't attack until your next turn. (=> Lost Level)

Lost Level — Scry 2. (=> Runestone Caverns or Muiral's Graveyard)

Runestone Caverns — Exile the top two cards of your library. You may play them. (=> Deep Mines)

Muiral's Graveyard — Create two 1/1 black Skeleton creature tokens. (=> Deep Mines)

Deep Mines — Scry 3. (=> Mad Wizard's Lair)

Mad Wizard's Lair — Draw three cards and reveal them. You may cast one of them without paying its mana cost.

Whenever you crank Duplication Device, until end of turn, target creature becomes a copy of any creature on the battlefield, except it's an artifact in addition to its other types.

: Add .
, : Target player mills a card.

: Add .
, , Sacrifice a land: Destroy target nonbasic land.

This land enters tapped.
You may choose not to untap this land during your untap step.
At the beginning of your upkeep, if this land is tapped, put a storage counter on it.
, Remove any number of storage counters from this land: Add for each storage counter removed this way.

This land enters tapped unless you control three or more other Mountains.
When this land enters untapped, create a 1/1 red Dwarf creature token.

This land enters tapped.
: Add .
, Sacrifice this land: Add .

Go wide with legendary allies

High-power brawlers

Weaponize your lands

Wield lands in combat

This land enters tapped.
: Add .
, Sacrifice this land: Add .

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up at any time and reveal the chosen name.)
Whenever you cast an instant or sorcery spell, if it targets a creature you control with the chosen name, you may copy that spell and may choose new targets for the copy.

As this land enters, choose a creature type.
: Add .
: Add one mana of any color. Spend this mana only to cast spells of the chosen type.
Exhaust — , : Seek a card of the chosen type.

You may have this land enter tapped as a copy of any land card in a graveyard, except it's a Cave in addition to its other types.
: Add .

As this land enters, choose Elemental, Elf, Faerie, Giant, Goblin, Kithkin, Merfolk, or Treefolk.
: Add .
: Add one mana of any color. Spend this mana only to cast a spell of the chosen type or activate an ability of a source of the chosen type.

This land enters tapped unless you control two or more basic lands.

When Ecstatic Piper enters, Xenagos Ascended attacks this turn if able.
Hero's Reward — When Ecstatic Piper leaves the battlefield, each player gains 2 life.