Hover Barrier

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.)

Rookie Mistake

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

Island

Glacial Wall

Wings of the Cosmos

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

Tree of Redemption

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

Angelic Wall

Defender (This creature can't attack.)
Flying

Steel Wall

Wall of Denial

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

Command Tower

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

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.")

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.)

Carven Caryatid

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

Dazzling Ramparts

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

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.)

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.)

Loran's Escape

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

Peregrine Mask

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

Wall of Omens

Defender
When Wall of Omens enters, draw a card.

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.

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.

Sol Ring

Heroic Intervention

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

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.

Amaranthine Wall

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

Guardians of Meletis

Plains

Jaddi Offshoot

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

Leaping Ambush

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

Murmuring Phantasm

Sylvan Caryatid

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

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.")

Clockwork Drawbridge

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

Aegis of the Heavens

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

Consulate Skygate

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

Dragon's Eye Sentry

Fog Bank

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

Bar the Door

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

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.

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.

Riptide Turtle

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.

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.

Seaside Citadel

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

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.)

Roc Egg

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

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.)

Excavated Wall

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

Ancient Ziggurat

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

Axebane Guardian

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

Overgrown Battlement

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

Counterspell

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.)

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.)

Forest

Crashing Drawbridge

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

Steady Aim

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

Shape the Sands

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