Wall of Omens

Defender
When Wall of Omens enters, draw a card.

Amaranthine Wall

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

Wall of Glare

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

Plains

Forest

Sunweb

Defender (This creature can't attack.)
Flying
Sunweb can't block creatures with power 2 or less.

Jeskai Barricade

Flash (You may cast this spell any time you could cast an instant.)
Defender
When Jeskai Barricade enters, you may return another target creature you control to its owner's hand.

Ageless Sentinels

Defender (This creature can't attack.)
Flying
When Ageless Sentinels blocks, it becomes a Bird Giant, and it loses defender. (It's no longer a Wall. This effect lasts indefinitely.)

Angelic Wall

Defender (This creature can't attack.)
Flying

Dazzling Ramparts

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