Almost Perfect

Enchant creature
Enchanted creature has base power and toughness 9/10 and has indestructible.

Manor Gargoyle

Defender
This creature has indestructible as long as it has defender.
{1}: Until end of turn, this creature loses defender and gains flying.

Baldin, Century Herdmaster

During your turn, each creature assigns combat damage equal to its toughness rather than its power.
Whenever Baldin attacks, up to one hundred target creatures each get +0/+X until end of turn, where X is the number of cards in your hand.

Excavated Wall

Defender
{1}, {T}: Mill a card. (Put the top card of your library into your graveyard.)

Wall of Essence

Defender (This creature can't attack.)
Whenever this creature is dealt combat damage, you gain that much life.

Guard Duty

Enchant creature
Enchanted creature has defender.

Wall of Hope

Defender (This creature can't attack.)
Whenever this creature is dealt damage, you gain that much life.

Overgrown Arch

Defender
{T}: You gain 1 life.
{2}, Sacrifice this creature: Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Wall of Corpses

Defender (This creature can't attack.)
{B}, Sacrifice this creature: Destroy target creature this creature is blocking.

Vine Trellis

Defender (This creature can't attack.)
{T}: Add {G}.

Consulate Skygate

Defender
Reach (This creature can block creatures with flying.)

Junktroller

Defender
{T}: Put target card from a graveyard on the bottom of its owner's library.

Guardians of Akrasa

Defender (This creature can't attack.)
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Weathered Sentinels

Defender, vigilance, reach, trample
This creature can attack players who attacked you during their last turn as though it didn't have defender.
Whenever this creature attacks, it gets +3/+3 and gains indestructible until end of turn.

Tree of Redemption

Defender
{T}: Exchange your life total with this creature's toughness.

Forest

Wall of Blossoms

Defender
When this creature enters, draw a card.

Jaddi Offshoot

Defender
Landfall — Whenever a land you control enters, you gain 1 life.

Swamp

Crystal Barricade

Defender (This creature can't attack.)
You have hexproof. (You can't be the target of spells or abilities your opponents control.)
Prevent all noncombat damage that would be dealt to other creatures you control.

Stalwart Shield-Bearers

Defender
Other creatures you control with defender get +0/+2.

Caller of the Hunt

As an additional cost to cast this spell, choose a creature type.
Caller of the Hunt's power and toughness are each equal to the number of creatures of the chosen type on the battlefield.

Wall of Glare

Defender (This creature can't attack.)
This creature can block any number of creatures.

Archers' Parapet

Defender
{1}{B}, {T}: Each opponent loses 1 life.

Wall of Bone

Defender (This creature can't attack.)
{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Steel Wall

Resolute Watchdog

Defender
{1}, Sacrifice this creature: Target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Assault Formation

Each creature you control assigns combat damage equal to its toughness rather than its power.
{G}: Target creature with defender can attack this turn as though it didn't have defender.
{2}{G}: Creatures you control get +0/+1 until end of turn.

Guardian Zendikon

Enchant land
Enchanted land is a 2/6 white Wall creature with defender. It's still a land.
When enchanted land dies, return that card to its owner's hand.

Jaws of Defeat

Whenever a creature you control enters, target opponent loses life equal to the difference between that creature's power and its toughness.

Wall of Junk

Defender (This creature can't attack.)
When this creature blocks, return it to its owner's hand at end of combat. (Return it only if it's on the battlefield.)

Carven Caryatid

Defender (This creature can't attack.)
When this creature enters, draw a card.

Slaughter the Strong

Each player chooses any number of creatures they control with total power 4 or less, then sacrifices all other creatures they control.

Angelic Chorus

Whenever a creature you control enters, you gain life equal to its toughness.

Souls of the Faultless

Defender (This creature can't attack.)
Whenever this creature is dealt combat damage, you gain that much life and attacking player loses that much life.

Felothar the Steadfast

Each creature you control assigns combat damage equal to its toughness rather than its power.
Creatures you control can attack as though they didn't have defender.
{3}, {T}, Sacrifice another creature: Draw cards equal to the sacrificed creature's toughness, then discard cards equal to its power.

The Walls of Ba Sing Se

Defender
Other permanents you control have indestructible.

Towering Viewpoint

Defender, reach
Leap of Faith — {3}: Target creature gains flying until end of turn.

Pride Guardian

Defender
Whenever this creature blocks, you gain 3 life.

Sol Ring

Colossus of Akros

Defender, indestructible
{10}: Monstrosity 10. (If this creature isn't monstrous, put ten +1/+1 counters on it and it becomes monstrous.)
As long as this creature is monstrous, it has trample and can attack as though it didn't have defender.

Suspicious Bookcase

Defender
{3}, {T}: Target creature can't be blocked this turn.

Aurification

Whenever a creature deals damage to you, put a gold counter on it.
Each creature with a gold counter on it is a Wall in addition to its other creature types and has defender. (Those creatures can't attack.)
When this enchantment leaves the battlefield, remove all gold counters from all creatures.

Abzan Monument

When this artifact enters, search your library for a basic Plains, Swamp, or Forest card, reveal it, put it into your hand, then shuffle.
{1}{W}{B}{G}, {T}, Sacrifice this artifact: Create an X/X white Spirit creature token, where X is the greatest toughness among creatures you control. Activate only as a sorcery.

Towering Titan

This creature enters with X +1/+1 counters on it, where X is the total toughness of other creatures you control.
Sacrifice a creature with defender: All creatures gain trample until end of turn.

Skeleton Key

Equipped creature has skulk. (It can't be blocked by creatures with greater power.)
Whenever equipped creature deals combat damage to a player, you may draw a card. If you do, discard a card.
Equip {2}

Shield-Wall Sentinel

Defender
When this creature enters, you may search your library for a creature card with defender, reveal it, put it into your hand, then shuffle.

Rammas Echor, Ancient Shield

Whenever you cast your second spell each turn, draw a card, then create a 0/3 white Wall creature token with defender.
At the beginning of combat on your turn, creatures you control with defender gain exalted until end of turn. (Whenever a creature you control attacks alone, it gets +1/+1 until end of turn for each instance of exalted among permanents you control.)

The Birth of Meletis

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Search your library for a basic Plains card, reveal it, put it into your hand, then shuffle.
II — Create a 0/4 colorless Wall artifact creature token with defender.
III — You gain 2 life.

Builder's Talent

(Gain the next level as a sorcery to add its ability.)
When this Class enters, create a 0/4 white Wall creature token with defender.
{W}: Level 2
Whenever one or more noncreature, nonland permanents you control enter, put a +1/+1 counter on target creature you control.
{4}{W}: Level 3
When this Class becomes level 3, return target noncreature, nonland permanent card from your graveyard to the battlefield.

Gleaming Barrier

Defender
When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Fortified Rampart

Walking Bulwark

Defender
{2}: Until end of turn, target creature with defender gains haste, can attack as though it didn't have defender, and assigns combat damage equal to its toughness rather than its power. Activate only as a sorcery.

Canopy Gargantuan

Flying, ward {2}
At the beginning of your upkeep, put a number of +1/+1 counters on each other creature you control equal to that creature's toughness.

Sky Tether

Enchant creature
Enchanted creature has defender and loses flying.

Thought Vessel

You have no maximum hand size.
{T}: Add {C}.

Basilica Guards

Defender
Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)

Animate Wall

Enchant Wall
Enchanted Wall can attack as though it didn't have defender.

Blight Pile

Defender
{2}{B}, {T}: Each opponent loses X life, where X is the number of creatures with defender you control.

Axebane Guardian

Defender
{T}: Add X mana in any combination of colors, where X is the number of creatures you control with defender.

Wall of Tanglecord

Defender
{G}: This creature gains reach until end of turn. (It can block creatures with flying.)

Wingmantle Chaplain

Defender
When this creature enters, create a 1/1 white Bird creature token with flying for each creature with defender you control.
Whenever another creature you control with defender enters, create a 1/1 white Bird creature token with flying.

Rolling Stones

Wall creatures can attack as though they didn't have defender.

Colfenor's Urn

Whenever a creature with toughness 4 or greater is put into your graveyard from the battlefield, you may exile it.
At the beginning of the end step, if three or more cards have been exiled with this artifact, sacrifice it. If you do, return those cards to the battlefield under their owner's control.

Plains

Rampart Architect

Whenever this creature enters or attacks, create a 1/3 white Wall creature token with defender.
Whenever a creature you control with defender dies, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Perimeter Captain

Defender
Whenever a creature you control with defender blocks, you may gain 2 life.

Traproot Kami

Defender; reach (This creature can block creatures with flying.)
Traproot Kami's toughness is equal to the number of Forests on the battlefield.

Foriysian Interceptor

Flash (You may cast this spell any time you could cast an instant.)
Defender
This creature can block an additional creature each combat.

Angelic Wall

Defender (This creature can't attack.)
Flying

Portcullis Vine

Defender (This creature can't attack.)
{2}, {T}, Sacrifice a creature with defender: Draw a card.

Wall of Souls

Defender (This creature can't attack.)
Whenever this creature is dealt combat damage, it deals that much damage to target opponent or planeswalker.

Black Oak of Odunos

Defender
{B}, Tap another untapped creature you control: This creature gets +1/+1 until end of turn.

MacCready, Lamplight Mayor

Whenever a creature you control with power 2 or less attacks, it gains skulk until end of turn. (It can't be blocked by creatures with greater power.)
Whenever a creature with power 4 or greater attacks you, its controller loses 2 life and you gain 2 life.

Overgrown Battlement

Defender
{T}: Add {G} for each creature you control with defender.

Bedrock Tortoise

During your turn, creatures you control have hexproof.
Each creature you control with toughness greater than its power assigns combat damage equal to its toughness rather than its power.

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Flumph

Defender, flying
Whenever this creature is dealt damage, you and target opponent each draw a card.

Behind the Scenes

Creatures you control have skulk. (They can't be blocked by creatures with greater power.)
{4}{W}: Creatures you control get +1/+1 until end of turn.

Tree of Perdition

Defender
{T}: Exchange target opponent's life total with this creature's toughness.

Amaranthine Wall

Defender
{2}: This creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)