Wall of Shields

Defender (This creature can’t attack.)
Banding (If any creatures with banding you control are blocking a creature, you divide that creature’s combat damage, not its controller, among any of the creatures it’s being blocked by.)

Drift of the Dead

Defender (This creature can’t attack.)
Drift of the Dead’s power and toughness are each equal to the number of snow lands you control.

Illusionary Wall

Defender, flying, first strike
Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Snow Fortress

Defender (This creature can’t attack.)
: Snow Fortress gets +1/+0 until end of turn.
: Snow Fortress gets +0/+1 until end of turn.
: Snow Fortress deals 1 damage to target creature without flying that’s attacking you.

Tinder Wall

Defender (This creature can’t attack.)
Sacrifice Tinder Wall: Add .
, Sacrifice Tinder Wall: It deals 2 damage to target creature it’s blocking.

Walking Wall

Defender
: Walking Wall gets +3/-1 until end of turn and can attack this turn as though it didn’t have defender. Activate this ability only once each turn.

Wall of Lava

Defender (This creature can’t attack.)
: Wall of Lava gets +1/+1 until end of turn.

Wall of Air

Defender, flying (This creature can’t attack, and it can block creatures with flying.)

Wall of Dust

Defender (This creature can’t attack.)
Whenever Wall of Dust blocks a creature, that creature can’t attack during its controller’s next turn.

Wall of Spears

Defender (This creature can’t attack.)
First strike

Wall of Fire

Defender (This creature can’t attack.)
: Wall of Fire gets +1/+0 until end of turn.

Wall of Water

Defender (This creature can’t attack.)
: Wall of Water gets +1/+0 until end of turn.

Wall of Air

Defender, flying (This creature can’t attack, and it can block creatures with flying.)

Wall of Spears

Defender (This creature can’t attack.)
First strike

Wall of Water

Defender (This creature can’t attack.)
: Wall of Water gets +1/+0 until end of turn.

Wall of Brambles

Defender (This creature can’t attack.)
: Regenerate Wall of Brambles.