Children of Korlis

Sacrifice Children of Korlis: You gain life equal to the life you've lost this turn. (Damage causes loss of life.)

Angel's Grace

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
You can't lose the game this turn and your opponents can't win the game this turn. Until end of turn, damage that would reduce your life total to less than 1 reduces it to 1 instead.

Perimeter Captain

Defender
Whenever a creature you control with defender blocks, you may gain 2 life.

Swamp

Blood Celebrant

{B}, Pay 1 life: Add one mana of any color.

Near-Death Experience

At the beginning of your upkeep, if you have exactly 1 life, you win the game.

Sign in Blood

Target player draws two cards and loses 2 life.

Idyllic Tutor

Search your library for an enchantment card, reveal it, put it into your hand, then shuffle.

Rest for the Weary

Target player gains 4 life.
Landfall — If you had a land enter the battlefield under your control this turn, that player gains 8 life instead.

Wall of Omens

Defender
When Wall of Omens enters the battlefield, draw a card.

Plains

Rebuff the Wicked

Counter target spell that targets a permanent you control.

Pain's Reward

Each player may bid life. You start the bidding with a bid of any number. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder loses life equal to the high bid and draws four cards.