Circle of Protection: White

{1}: The next time a white source of your choice would deal damage to you this turn, prevent that damage.

Island Sanctuary

If you would draw a card during your draw step, instead you may skip that draw. If you do, until your next turn, you can't be attacked except by creatures with flying and/or islandwalk.

Circle of Protection: Black

{1}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

Balance

Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

Plains

Karma

At the beginning of each player's upkeep, Karma deals damage to that player equal to the number of Swamps they control.

Consecrate Land

Enchant land
Enchanted land has indestructible and can't be enchanted by other Auras.

Wall of Swords

Defender (This creature can't attack.)
Flying

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.