Saltskitter

Whenever another creature enters, exile Saltskitter. Return Saltskitter to the battlefield under its owner's control at the beginning of the next end step.

Gorger Wurm

Devour 1 (As this enters, you may sacrifice any number of creatures. This creature enters with that many +1/+1 counters on it.)

Mungha Wurm

You can't untap more than one land during your untap step.

Plated Slagwurm

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Streetbreaker Wurm

Craw Wurm

Pouncing Wurm

Kicker {2}{G} (You may pay an additional {2}{G} as you cast this spell.)
If Pouncing Wurm was kicked, it enters with three +1/+1 counters on it and with haste.

Dirtcowl Wurm

Whenever an opponent plays a land, put a +1/+1 counter on Dirtcowl Wurm.

Sandwurm Convergence

Creatures with flying can't attack you or planeswalkers you control.
At the beginning of your end step, create a 5/5 green Wurm creature token.

Sifter Wurm

Trample
When Sifter Wurm enters, scry 3, then reveal the top card of your library. You gain life equal to that card's mana value.

Bookwurm

Trample
When Bookwurm enters, you gain 3 life and draw a card.
{2}{G}: Put Bookwurm from your graveyard into your library third from the top.

Massacre Wurm

When this creature enters, creatures your opponents control get -2/-2 until end of turn.
Whenever a creature an opponent controls dies, that player loses 2 life.

Crush of Wurms

Create three 6/6 green Wurm creature tokens.
Flashback {9}{G}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Elderscale Wurm

Trample
When Elderscale Wurm enters, if your life total is less than 7, your life total becomes 7.
As long as you have 7 or more life, damage that would reduce your life total to less than 7 reduces it to 7 instead.

Lurking Predators

Whenever an opponent casts a spell, reveal the top card of your library. If it's a creature card, put it onto the battlefield. Otherwise, you may put that card on the bottom of your library.

Water Wurm

Water Wurm gets +0/+1 as long as an opponent controls an Island.

Primordial Wurm

Grothama, All-Devouring

Other creatures have "Whenever this creature attacks, you may have it fight Grothama, All-Devouring."
When Grothama leaves the battlefield, each player draws cards equal to the amount of damage dealt to Grothama this turn by sources they controlled.

Dreadwurm

Landfall — Whenever a land you control enters, Dreadwurm gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Armada Wurm

Trample
When Armada Wurm enters, create a 5/5 green Wurm creature token with trample.

Wurm

Carrion Wurm

Whenever Carrion Wurm attacks or blocks, any player may exile three cards from their graveyard. If a player does, Carrion Wurm assigns no combat damage this turn.

Ruination Wurm

Charnelhoard Wurm

Trample
Whenever Charnelhoard Wurm deals damage to an opponent, you may return target card from your graveyard to your hand.

Baru, Wurmspeaker

Wurms you control get +2/+2 and have trample.
{7}{G}, {T}: Create a 4/4 green Wurm creature token. This ability costs {X} less to activate, where X is the greatest power among Wurms you control.

Voracious Wurm

Voracious Wurm enters with X +1/+1 counters on it, where X is the amount of life you've gained this turn.

Teething Wurmlet

Teething Wurmlet has deathtouch as long as you control three or more artifacts.
Whenever an artifact you control enters, you gain 1 life. If this is the first time this ability has resolved this turn, put a +1/+1 counter on Teething Wurmlet.

Predatory Wurm

Vigilance (Attacking doesn't cause this creature to tap.)
Predatory Wurm gets +2/+2 as long as you control a Garruk planeswalker.

Pelakka Wurm

Trample
When Pelakka Wurm enters, you gain 7 life.
When Pelakka Wurm dies, draw a card.

Tunneler Wurm

Discard a card: Regenerate Tunneler Wurm.

Cowl Prowler

Havenwood Wurm

Flash (You may cast this spell any time you could cast an instant.)
Trample

Penumbra Wurm

Trample
When Penumbra Wurm dies, create a 6/6 black Wurm creature token with trample.

Siege Wurm

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Trample

Carnage Wurm

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters with three +1/+1 counters on it.)
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Novablast Wurm

Whenever Novablast Wurm attacks, destroy all other creatures.

Belligerent Whiptail

Landfall — Whenever a land you control enters, Belligerent Whiptail gains first strike until end of turn.

Rage Reflection

Creatures you control have double strike.

Barbtooth Wurm

Trench Wurm

{2}{R}, {T}: Destroy target nonbasic land.

Elfhame Wurm

Plated Wurm

Enlisted Wurm

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Greater Sandwurm

Greater Sandwurm can't be blocked by creatures with power 2 or less.
Cycling {2} ({2}, Discard this card: Draw a card.)

Rootbreaker Wurm

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Segmented Wurm

Whenever Segmented Wurm becomes the target of a spell or ability, put a -1/-1 counter on it.

Saproling

Wurm // Saproling

Johtull Wurm

Whenever Johtull Wurm becomes blocked, it gets -2/-1 until end of turn for each creature blocking it beyond the first.

Yavimaya Wurm

Warping Wurm

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)
At the beginning of your upkeep, Warping Wurm phases out unless you pay {2}{G}{U}.
Whenever Warping Wurm phases in, put a +1/+1 counter on it.

Metamorphic Wurm

Threshold — Metamorphic Wurm gets +4/+4 as long as seven or more cards are in your graveyard.

Defiler of Vigor

Trample
As an additional cost to cast green permanent spells, you may pay 2 life. Those spells cost {G} less to cast if you paid life this way. This effect reduces only the amount of green mana you pay.
Whenever you cast a green permanent spell, put a +1/+1 counter on each creature you control.

Engulfing Slagwurm

Whenever Engulfing Slagwurm blocks or becomes blocked by a creature, destroy that creature. You gain life equal to that creature's toughness.

Spined Wurm

Thundering Wurm

When Thundering Wurm enters, sacrifice it unless you discard a land card.

Canopy Gorger

Vastwood Gorger

Tempting Wurm

When Tempting Wurm enters, each opponent may put any number of artifact, creature, enchantment, and/or land cards from their hand onto the battlefield.

Bellowing Tanglewurm

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
Other green creatures you control have intimidate.

Jungle Wurm

Whenever Jungle Wurm becomes blocked, it gets -1/-1 until end of turn for each creature blocking it beyond the first.

Symbiotic Wurm

When Symbiotic Wurm dies, create seven 1/1 green Insect creature tokens.

Broodhunter Wurm

Ravenous Lindwurm

When Ravenous Lindwurm enters, you gain 4 life.

Soul Swallower

Trample
Delirium — At the beginning of your upkeep, if there are four or more card types among cards in your graveyard, put three +1/+1 counters on Soul Swallower.

Roar of the Wurm

Create a 6/6 green Wurm creature token.
Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Worms of the Earth

Players can't play lands.
Lands can't enter the battlefield.
At the beginning of each upkeep, any player may sacrifice two lands of their choice or have Worms of the Earth deal 5 damage to that player. If a player does either, destroy Worms of the Earth.

Autochthon Wurm

Witherscale Wurm

Whenever Witherscale Wurm blocks or becomes blocked by a creature, that creature gains wither until end of turn. (It deals damage to creatures in the form of -1/-1 counters.)
Whenever Witherscale Wurm deals damage to an opponent, remove all -1/-1 counters from it.

Roaring Slagwurm

Whenever Roaring Slagwurm attacks, tap all artifacts.

Deathcoil Wurm

You may have Deathcoil Wurm assign its combat damage as though it weren't blocked.

Scaled Wurm

Boneyard Wurm

Boneyard Wurm's power and toughness are each equal to the number of creature cards in your graveyard.

Timmy, Power Gamer

{4}: You may put a creature card from your hand onto the battlefield.

Sarinth Greatwurm

Trample
Whenever a land enters, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")

Duskdale Wurm

Waning Wurm

Vanishing 2 (This creature enters with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

Bramble Wurm

Reach, trample
When Bramble Wurm enters, you gain 5 life.
{2}{G}, Exile Bramble Wurm from your graveyard: You gain 5 life.

Scoria Wurm

At the beginning of your upkeep, flip a coin. If you lose the flip, return Scoria Wurm to its owner's hand.

Impervious Greatwurm

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Indestructible

Golgari Rotwurm

{B}, Sacrifice a creature: Target player loses 1 life.

Forest

Henge Guardian

{2}: Henge Guardian gains trample until end of turn.

Worldspine Wurm

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.

Wurmcoil Engine

Deathtouch, lifelink
When Wurmcoil Engine dies, create a 3/3 colorless Phyrexian Wurm artifact creature token with deathtouch and a 3/3 colorless Phyrexian Wurm artifact creature token with lifelink.

Ravaging Riftwurm

Kicker {4} (You may pay an additional {4} as you cast this spell.)
Vanishing 2 (This creature enters with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
If Ravaging Riftwurm was kicked, it enters with three additional time counters on it.

Iron-Craw Crusher

Prototype {2}{G}{G} — 2/5 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)
Whenever Iron-Craw Crusher attacks, target attacking creature gets +X/+0 until end of turn, where X is Iron-Craw Crusher's power.

Panglacial Wurm

Trample
While you're searching your library, you may cast Panglacial Wurm from your library.

Gravetiller Wurm

Trample
Morbid — Gravetiller Wurm enters with four +1/+1 counters on it if a creature died this turn.

Endless Wurm

Trample
At the beginning of your upkeep, sacrifice Endless Wurm unless you sacrifice an enchantment.

Battering Wurm

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters with a +1/+1 counter on it.)
Creatures with power less than Battering Wurm's power can't block it.

Terrus Wurm

Scavenge {6}{B} ({6}{B}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Quilled Slagwurm

Reckless Wurm

Trample
Madness {2}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Vigorspore Wurm

Undergrowth — When Vigorspore Wurm enters, target creature gains vigilance and gets +X/+X until end of turn, where X is the number of creature cards in your graveyard.
Vigorspore Wurm can't be blocked by more than one creature.

Emergent Woodwurm

Backup 3 (When this creature enters, put three +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.)
Whenever this creature attacks, look at the top X cards of your library, where X is its power. You may put a permanent card with mana value X or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Arrogant Wurm

Trample
Madness {2}{G} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Phantom Wurm

Phantom Wurm enters with four +1/+1 counters on it.
If damage would be dealt to Phantom Wurm, prevent that damage. Remove a +1/+1 counter from Phantom Wurm.

Whiptail Wurm

Elder Land Wurm

Defender, trample
When Elder Land Wurm blocks, it loses defender.

Nesting Wurm

Trample
When Nesting Wurm enters, you may search your library for up to three cards named Nesting Wurm, reveal them, put them into your hand, then shuffle.

Winding Wurm

Echo {4}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Pathbreaker Wurm

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)
As long as Pathbreaker Wurm is paired with another creature, both creatures have trample.