Flying, trample When Worldgorger Dragon enters, exile all other permanents you control. When Worldgorger Dragon leaves the battlefield, return the exiled cards to the battlefield under their owners' control.
Flying You may cast Worldheart Phoenix from your graveyard by paying {W}{U}{B}{R}{G} rather than paying its mana cost. If you do, it enters with two +1/+1 counters on it.
As long as every card in your card pool started the game in your library or in the command zone, lands you control have "{T}: Add one mana of any color."
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.
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.
The Aurora is not the only magic capable of remaking a world.
Worldsoul's Rage deals X damage to any target. Put up to X land cards from your hand and/or graveyard onto the battlefield tapped.
"Hoarding supplies, profiting from death and destruction, colluding with the invaders—every one of them betrayed Ravnica in its time of greatest need. They all deserved to die. And I'm not done yet!"
Trample When Worldspine Wurm 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.
If you would create one or more artifact tokens, instead create those tokens plus an additional Map token. {1}{U}, {T}: Create a token that's a copy of target artifact token you control.
When Wormfang Behemoth enters, exile all cards from your hand. When Wormfang Behemoth leaves the battlefield, return the exiled cards to their owner's hand.
Wormfang Crab can't be blocked. When Wormfang Crab enters, an opponent chooses a permanent you control other than Wormfang Crab and exiles it. When Wormfang Crab leaves the battlefield, return the exiled card to the battlefield under its owner's control.
Flying When Wormfang Drake enters, sacrifice it unless you exile a creature you control other than Wormfang Drake. When Wormfang Drake leaves the battlefield, return the exiled card to the battlefield under its owner's control.
When Wormfang Newt enters, exile a land you control. When Wormfang Newt leaves the battlefield, return the exiled card to the battlefield under its owner's control.
When Wormfang Turtle enters, exile a land you control. When Wormfang Turtle leaves the battlefield, return the exiled card to the battlefield under its owner's control.
Exile target creature an opponent controls. That player reveals cards from their sideboard at random until they reveal a nonland card. They may cast that card without paying its mana cost.
Players can't play lands. Lands can't enter the battlefield. At the beginning of each upkeep, any player may sacrifice two lands or have Worms of the Earth deal 5 damage to that player. If a player does either, destroy Worms of the Earth.
The ground collapsed, leaving nothing but the great Worms' mucous residues.
{G}: Wormwood Dryad gains forestwalk until end of turn and deals 1 damage to you. {B}: Wormwood Dryad gains swampwalk until end of turn and deals 1 damage to you.
{G}{G}: Wormwood Treefolk gains forestwalk until end of turn and deals 2 damage to you. {B}{B}: Wormwood Treefolk gains swampwalk until end of turn and deals 2 damage to you.