MTGNexus

Seedcore Thicket

Essence of Realmbreaker GW
Creature - Phyrexian Plant Wall
Defender
As long as you control five or more Phyrexians and/or Spheres, you may pay 10 life rather than pay exactly WUBRG in costs.
WUBRG, T: Choose a color. For as long as you control Essence of Realmbreaker, target land you control becomes a Phyrexian Praetor creature of that color with base power and toughness each equal to the number of lands you control in addition to its other types. It gains haste and "Spells of the chosen color you cast cost 2 less to cast and spells of that color your opponents cast cost 2 more to cast."
0/5

Next: A tricolor Wall

Embercore Barricade -- BRG
Creature - Wall
Defender
When Embercore Barricade enters the battlefield, you ,may sacrifice any number of lands, then exile any number of land cards from graveyards. Put a +1/+1 counter on Embercore Barricade for each land card sacrificed or exiled this way.
0/3
.
Next: A wall that connects to at least three other Walls.

Castle Wall W
Artifact Creature - Wall
Defender
Castle Wall gets +0/+1 for each other card named Castle Wall you control.
As long as you control four or more artifacts named Castle Wall, creatures you control have vigilance.
A deck can have any number of cards named Castle Wall.
0/2

Next: am enchantment Wall

Walls of Aragatha 3WU
Enchantment Creature - Saga Wall
Defender
Whenever combat damage is dealt to Walls of Aragatha, remove a lore counter from it.
I - Exile another target nonland permanent until Walls of Aragatha leaves the battlefield.
II - Draw a card and create a treasure token.
III - Until end of turn, whenever a nontoken creature enters the battlefield, create a token that's a copy of that creature.
0/6

Next: A Tribal Wall card

Master Aurification 5W
Tribal Enchantment - Wall
At the beginning of combat on your turn, put three +1/+1 counters on up to one target Wall creature. This turn, that creature can attack as though it didn't have defender.
At the beginning of combat on each opponent's turn, put a gold counter on up to one target non-Wall creature. That creature is a Wall in addition to its other creature types and has defender for as long as it has that counter on it.
When Master Aurification leaves the battlefield, remove all gold counters from all creatures. Create a Gold token for each gold counter removed this way.

Next: A Wall with morph

Abzan Vanguard 2WBG
Creature - Soldier Wall (Common)
Defender, flying
Abzan Vanguard's toughness is equal to the number of +1/+1 counters among creatures you control.
Morph 1WBG
0/*

Next: a Knight Wall

Hedge Knight
Creature - Plant Knight Wall
Defender, Menace
Landfall - Whenever a land enters the battlefield under your control, put a +1/+1 counter on Hedge Knight.
Whenever a creature dealt damage by Hedge Knight this turn dies, create a Treasure token.
Sacrifice a Treasure token: Hedge Knight loses defender until end of turn.
0/1

Next: a Segovian wall

Ha, "hedge knight" - that's funny!

Expansive Beachhead U
Creature - Sand Wall
Defender, protection from colorless
5W: Expansive Beachhead gets +0/+10 and can block any number of creatures until end of turn. Activate only once per turn. If the current plane is Segovia, you may activate this ability without paying its activation cost.
What looks like a small row of easily climbable dunes elsewhere readily holds off monsters like Caetus on its home plane.
0/1

Next: A Wall that produces Walls

Shinkas, the Growing Frost 1UU
Legendary Snow Creature - Elemental Wall
Defender
Shinkas, the Growing Frost's toughness is equal to the number of Walls you control.
At the beginning of each upkeep, create a 0/1 blue Elemental Wall snow creature token with defender and "When this creature dies, if it's blocking, target creature blocking it doesn't untap during its controller's next untap step."
0/*

Next: another snow Wall

Snow Fort
Snow Creature - Wall
Defender
When Snow Fort enters the battlefield, create three Snowball artifact tokens with ", Sacrifice this artifact: Put a stun counter on target creature."
,: Tap target creature.
0/4

Next: A wall with embalm

Living Dune
Creature - Elemental Wall
Defender
When Living Dune enters the battlefield you get an emblem with "all lands your control are deserts in addition to there other types. All non-basic lands you control enter the battlefield tapped unless you pay ."
Living Dune's toughness is equal to the number of deserts your control.
0/*

Next: a wall in its name is related to a planeswalker.

Karn's Bastion 2.0 4
Artifact Creature - Wall (R)
Defender
Karn's Bastion 2.0's toughness is equal to twice the number of artifacts you control.
4, : Create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control." Proliferate.
0/*

Next: a colorless Wall that isn't an artifact

Wall of Nothing
Creature - Wall (C)
Shroud, defender
: Remove target creature blocked by Wall of Nothing from combat.
0/1

Next: a wall that references Monarch

Blood Gate of Barony 1bb
Artifact Creature - Wall
Defender.
When Blood Gate of Barony enters the battlefield target opponent becomes the monarch.
Whenever a creature dealt damage by Blood Gate of Barony this turn dies put a +1/+1 counter on Blood Gate of Barony.
As long as you are the Monarch, Blood Gate of Barony loses defender and gains menace.
3/4

Next: a snow super type wall that cares about other snow permanents.

Omrukal, Bastion of Winter 2UUU
Legendary Snow Creature - Wall
Defender
Omrukal, Bastion of Winter's toughness is equal to the number of snow permanents you control.
Whenever Omrukal blocks a creature, put a stun counter on that creature.
When Omrukal dies, untap all nonland snow permanents you control. Put a stun counter on up to X target nonland permanents you don't control, where X is the number of permanents untapped this way.
0/*

Next: a wall with Bestow

Illusory Cladding 1uu
Creature - Illusion Wall
Defender, Ward
Enchanted creature gets +0/+5 and has defender and Ward .
Bestow 3uu
: Return the creature Illusory Cladding enchants to its owner's hand.
0/5

next: Creature - Fractal Wall

Wall of Tessellation {2/W}UG
Creature - Fractal Wall
Flash
Defender
CARDNAME enters the battlefield with X +1/+1 counters on it, where X is the largest amount of damage dealt to you this turn.
0/0

Next: an abstract wall

Barrier of Thought 1U
Creature - Illusion Wall
Defender
Barrier of Thought may block any creature regardless of attacking creature's abilities. Attacking creature loses first strike, deathtouch, double strike, flanking and trample until end of turn.
When Barrier of Thought blocks, you and attacking player each draw two cards. Barrier of Thought's base toughness becomes equal to the total number of cards in yours and attacking player's hands. At the end of combat you and attacking player discard two cards.
0/3

IIW: wall with a class secondary type.

Planted Ruffians 2RR
Creature - Rogue Wall
Defender
Planted Ruffians gets +0/+1 for each +1/+1 counter among Army creatures you control.
Whenever Planted Ruffians blocks, amass Rogues 1.
XRR, Sacrifice Planted Ruffians: It deals X damage to each non-Army creature and each player. Amass Rogues 3.
"Payment? They just want to release their frustrations, and this is the way they enjoy the most. I just make sure they get that satisfaction."
—Bela Bartel
0/0

Next: a Wall that taps for mana

Hot Spring Basin 3G
Creature - Wall
Defender
T: Add U. Spend this mana only to cast an instant spell. That spell can't be countered.
T: Add R. Spend this mana only to cast a sorcery spell. That spell can't be countered.
When Hot Spring Basin dies, you gain 1 life for each instant and sorcery card in your graveyard.
0/6

Next: A Wall that can make itself lose defender or attack as though it didn't have defender

Ravenous Sagebush 3B
Creature - Plant Wall
Defender
Sacrifice a creature: Ravenous Sagebush loses defender and gains menace until end of turn.
5/6

Next:
A wall with a triggered ability that harms you.

Wall of Self-Delusion - 2UBW
Creature - Nightmare Wall
Defender
Whenever a source deals damage to Wall of Self-Delusion, prevent that damage. You lose X life and mill X cards, where X is the amount of damage prevented. Then, if the source of that damage is a permanent, exile that permanent. If it's a spell, exile that spell after it resolves.
The pain is real. Are they?
0/6

Next: A wall that changes card types

Fabric of Reality CC
Creature - Wall Incarnation
Defender
As long as it's your turn, Fabric of Reality is an enchantment and loses all other types.
3: Target permanent you control phases out. Fabric of Reality becomes an artifact and loses all other types and this ability until end of turn.
0/4

Next: a wall of rain

Wall of Rain 1UU
Creature - Elemental Wall
Flash
Flying, Defender
When Wall of Rain blocks a creature, return that creature to its owners hand at the end of combat.
UU, T: Return Wall of Rain to its owners hand.
0/5

Next: a wall made of biological nonplant nor fungi material that isn't flesh, bodily fluid, waste, or bone.

Cartilage Buffer
Creature - Construct Wall
Defender
Soulbond (You may pair this creature with another unpaired creature wawawawa)
Cartilage Buffer and its paired creature have ": Regenerate this creature" while paired.
0/2

next: a fallen tree