False Cure

Until end of turn, whenever a player gains life, that player loses 2 life for each 1 life they gained.

Healing Leaves

Choose one —
• Target player gains 3 life.
• Prevent the next 3 damage that would be dealt to any target this turn.

Plague Drone

Flying
Rot Fly — If an opponent would gain life, that player loses that much life instead.

Skyshroud Cutter

If you control a Forest, rather than pay this spell's mana cost, you may have each other player gain 5 life.

Aria of Flame

When this enchantment enters, each opponent gains 10 life.
Whenever you cast an instant or sorcery spell, put a verse counter on this enchantment, then it deals damage equal to the number of verse counters on it to target player or planeswalker.

Mournful Zombie

Reverent Silence

If you control a Forest, rather than pay this spell's mana cost, you may have each other player gain 6 life.
Destroy all enchantments.

Grollub

Whenever this creature is dealt damage, each opponent gains that much life.

Tainted Remedy

If an opponent would gain life, that player loses that much life instead.

Soothing Balm

Wall of Shards

Defender, flying
Cumulative upkeep—An opponent gains 1 life. (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.)

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.

Rain of Gore

If a spell or ability would cause its controller to gain life, that player loses that much life instead.

Healing Salve

Heroes' Reunion

Life Burst

Target player gains 4 life, then gains 4 life for each card named Life Burst in each graveyard.

Fiery Justice

Fiery Justice deals 5 damage divided as you choose among any number of targets. Target opponent gains 5 life.