Phyrexian Unlife

You don't lose the game for having 0 or less life.
As long as you have 0 or less life, all damage is dealt to you as though its source had infect. (Damage is dealt to you in the form of poison counters.)

Heliod's Intervention

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

Infernal Grasp

Destroy target creature. You lose 2 life.

Plains

Axis of Mortality

At the beginning of your upkeep, you may have two target players exchange life totals.

Sign in Blood

Target player draws two cards and loses 2 life.

Mountain

Spoils of the Vault

Choose a card name. Reveal cards from the top of your library until you reveal a card with that name, then put that card into your hand. Exile all other cards revealed this way, and you lose 1 life for each of the exiled cards.

Moonlight Bargain

Look at the top five cards of your library. For each card, put that card into your graveyard unless you pay 2 life. Then put the rest into your hand.

Swamp

Vesper Ghoul

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

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Shock

Solemnity

Players can't get counters.
Counters can't be put on artifacts, creatures, enchantments, or lands.