Create a 1/1 black and green Worm creature token for each land card in your graveyard.
Retrace

Whenever you cast a creature spell, seek a land card and put it onto the battlefield tapped.

Enchant creature
Enchanted creature gets -4/-4.
Basic landcycling

If you would create one or more artifact tokens, instead create those tokens plus an additional Map token.
, : Create a token that's a copy of target artifact token you control.

Trample
When this creature dies, create three 5/5 green Wurm creature tokens with trample.
When Worldspine Wurm is put into a graveyard from anywhere, shuffle it into its owner's library.

Whenever equipped creature deals combat damage to a player, destroy all permanents other than this Equipment.
Equip

Exile all creatures. Each player may put any number of creature cards from their hand onto the battlefield. Then put all cards exiled this way into their owners' hands. Exile Worlds Within Worlds.

Return all permanents to their owners' hands. Each player chooses up to seven cards in their hand, then shuffles the rest into their library. Each player loses all unspent mana.

Search your library for a creature card, reveal it, then shuffle and put the card on top.

Domain — Look at the top X cards of your library, where X is the number of basic land types among lands you control. Put one of those cards into your hand and the rest on the bottom of your library in any order.

(Start the game with this conspiracy face up in the command zone.)
As long as every card in your card pool started the game in your library or in the command zone, lands you control have " : Add one mana of any color."

Flying
You may cast this card from your graveyard by paying rather than paying its mana cost. If you do, it enters with two +1/+1 counters on it.

Flying, trample
When this creature enters, exile all other permanents you control.
When this creature leaves the battlefield, return the exiled cards to the battlefield under their owners' control.

Exile all permanents. Exile all cards from all hands and graveyards. Each player's life total becomes 1.

, Sacrifice World-Bottling Kit: Choose a Magic set. Exile all permanents with that set's expansion symbol except for basic lands.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
The next red or green creature spell you cast this turn can be cast without paying its mana cost.
Put three +1/+1 counters on target creature you control.
Choose target creature you control. Until end of turn, double its power and toughness and it gains trample.

Whenever this creature attacks, you may mill three cards.
When this creature dies, return all land cards from your graveyard to the battlefield tapped.

At the beginning of your upkeep, you may choose a card type. If you do, each player sacrifices a permanent of their choice of that type.

, , Sacrifice this artifact: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
, , Sacrifice this artifact: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Double Overdrive — Equipped creature gets +2/+0 and has double strike.
Equip

Devoid
When you cast this spell, exile target artifact, enchantment, or land.
Reach
, Sacrifice a land: Return this card from your graveyard to your hand.

After the second main phase this turn, there's an additional combat phase followed by an additional main phase. At the beginning of that combat, untap all creatures that attacked this turn.
Rebound

Trample
When this creature enters, you gain 3 life.
When this creature dies, create a 4/4 green Rhino Warrior creature token.
Blitz

Artifact creatures you control have flying.
At the beginning of combat on your turn, you may have target noncreature artifact you control become a 0/0 artifact creature. If you do, put four +1/+1 counters on it.

When this creature dies, return another target artifact card from your graveyard to your hand.

As Working Stiff enters, straighten your arms.
When you bend an elbow, sacrifice Working Stiff.

This creature enters with four +1/+1 counters on it.
Remove a +1/+1 counter from this creature: Add .

Assemble two Contraptions. (Put the top card of your Contraption deck face up onto one of your sprockets. Then repeat this process.)