Excavated Wall

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

Coral Colony

Defender
{1}{U}, {T}: Target player mills X cards, where X is the number of creatures you control with defender. (To mill a card, a player puts the top card of their library into their graveyard.)

Glacial Wall

Crashing Drawbridge

Defender
{T}: Creatures you control gain haste until end of turn.

Dragon's Eye Sentry

Tree of Redemption

Defender
{T}: Exchange your life total with Tree of Redemption's toughness.

Overgrown Battlement

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

Hornet Nest

Defender (This creature can't attack.)
Whenever Hornet Nest is dealt damage, create that many 1/1 green Insect creature tokens with flying and deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)

Riptide Turtle

Shape the Sands

Target creature gets +0/+5 and gains reach until end of turn. (It can block creatures with flying.)

Guardians of Meletis

Consulate Skygate

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

Vines of the Recluse

Target creature gets +1/+2 and gains reach until end of turn. Untap it. (A creature with reach can block creatures with flying.)

Island

Heroic Intervention

Permanents you control gain hexproof and indestructible until end of turn.

Wingmantle Chaplain

Defender
When Wingmantle Chaplain 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.

Geist of the Archives

Defender
At the beginning of your upkeep, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Teyo, Geometric Tactician

When Teyo, Geometric Tactician enters, create a 0/4 white Wall creature token with defender and flying.
+1: You and target opponent each draw a card.
−2: Choose left or right. Until your next turn, each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent.

Loran's Escape

Target artifact or creature gains hexproof and indestructible until end of turn. Scry 1.

Wings of the Cosmos

Target creature gets +1/+3 and gains flying until end of turn. Untap it.

Arcades, the Strategist

Flying, vigilance
Whenever a creature you control with defender enters, draw a card.
Each creature you control with defender assigns combat damage equal to its toughness rather than its power and can attack as though it didn't have defender.

Rookie Mistake

Until end of turn, target creature gets +0/+2 and another target creature gets -2/-0.

Teyo, the Shieldmage

You have hexproof. (You can't be the target of spells or abilities your opponents control.)
−2: Create a 0/3 white Wall creature token with defender.

Forest

Leaping Ambush

Target creature gets +1/+3 and gains reach until end of turn. Untap it.

Aegis of the Heavens

Target creature gets +1/+7 until end of turn.

Fortified Rampart

Gaea's Gift

Put a +1/+1 counter on target creature you control. It gains reach, trample, hexproof, and indestructible until end of turn. (It can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

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.")

Weathered Sentinels

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

Floriferous Vinewall

Defender
When Floriferous Vinewall enters, look at the top six cards of your library. You may reveal a land card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Clockwork Drawbridge

Defender
{2}{W}, {T}: Tap target creature.

Mizzium Skin

Target creature you control gets +0/+1 and gains hexproof until end of turn.
Overload {1}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Fog Bank

Defender (This creature can't attack.)
Flying
Prevent all combat damage that would be dealt to and dealt by this creature.

Roc Egg

Defender (This creature can't attack.)
When Roc Egg dies, create a 3/3 white Bird creature token with flying.

Ancient Ziggurat

{T}: Add one mana of any color. Spend this mana only to cast a creature spell.

Steady Aim

Untap target creature. It gets +1/+4 and gains reach until end of turn.

Jaddi Offshoot

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

Wall of Runes

Defender (This creature can't attack.)
When Wall of Runes enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Steel Wall

Counterspell

Dazzling Ramparts

Defender
{1}{W}, {T}: Tap target creature.

Carven Caryatid

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

Dive Down

Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Wall of Denial

Defender, flying
Shroud (This creature can't be the target of spells or abilities.)

Resolute Watchdog

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

Seaside Citadel

Seaside Citadel enters tapped.
{T}: Add {G}, {W}, or {U}.

Axebane Guardian

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

Murmuring Phantasm

Wall of Omens

Defender
When Wall of Omens enters, draw a card.

Triton Tactics

Up to two target creatures each get +0/+3 until end of turn. Untap those creatures. At this turn's next end of combat, tap each creature that was blocked by one of those creatures this turn and it doesn't untap during its controller's next untap step.

Sol Ring

Sylvan Caryatid

Defender, hexproof
{T}: Add one mana of any color.

Angelic Wall

Defender (This creature can't attack.)
Flying

Command Tower

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

Peregrine Mask

Equipped creature has defender, flying, and first strike.
Equip {2}

Bar the Door

Creatures you control get +0/+4 until end of turn.

Plains

Hover Barrier

Amaranthine Wall

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