Plains

Overgrown Battlement

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

Riptide Turtle

Axebane Guardian

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

Island

Forest

Wall of Denial

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

Stalwart Shield-Bearers

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

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.

High Alert

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.
{2}{W}{U}: Untap target creature.