Plague Drone

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

Rain of Gore

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

Tainted Remedy

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

Congregate

Target player gains 2 life for each creature on the battlefield.

Heliod's Intervention

Choose one —
• Destroy X target artifacts and/or enchantments.
• Target player gains twice X life.

Angel of Destiny

Flying, double strike
Whenever a creature you control deals combat damage to a player, you and that player each gain that much life.
At the beginning of your end step, if you have at least 15 life more than your starting life total, each player Angel of Destiny attacked this turn loses the game.

Energy Bolt

Choose one —
• Energy Bolt deals X damage to target player or planeswalker.
• Target player gains X life.

Aria of Flame

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