As an additional cost to cast this spell, discard X cards.

Look at target opponent's hand and choose X cards from it. That player discards those cards.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Landfall -- Whenever a land enters the battlefield under your control, equipped creature gets +2/+2 until end of turn.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Remove all counters from all permanents and exile all tokens.

Target creature gets -1/-1 until end of turn.

Draw a card.

Commander creatures you own have "Whenever an artifact or creature you control is put into a graveyard from the battlefield, each opponent loses 1 life."

Agonizing Syphon deals 3 damage to any target and you gain 3 life.

Target creature gets +1/+1 and gains your choice of deathtouch or lifelink until end of turn. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it. Damage dealt by a creature with lifelink also causes its controller to gain that much life.)

If you would gain life, you gain twice that much life instead.

If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

Flying

When Angel of Mercy enters the battlefield, you gain 3 life.

Flying

When Angel of Renewal enters the battlefield, you gain 1 life for each creature you control.

Exile target nonland permanent. You lose 3 life.

{T}: Add one mana of any color in your commander's color identity.

Flying

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Whenever you gain life, put a +1/+1 counter on each creature you control.

You gain 2 life for each card in your graveyard, then shuffle your graveyard into your library.

Flying

Whenever Archon of Cruelty enters the battlefield or attacks, target opponent sacrifices a creature or planeswalker, discards a card, and loses 3 life. You draw a card and gain 3 life.

Flying

When Archway Angel enters the battlefield, you gain 2 life for each Gate you control.

Flying (This creature can't be blocked except by creatures with flying or reach.)

When Aven Battle Priest enters the battlefield, you gain 3 life.

Flying

When Aven Gagglemaster enters the battlefield, you gain 2 life for each creature you control with flying.

Flying

When Aven of Enduring Hope enters the battlefield, you gain 3 life.

Bojuka Bog enters the battlefield tapped.

When Bojuka Bog enters the battlefield, exile target player's graveyard.

{T}: Add {B}.

{T}: Add {W}.

{T}: Add {B}.

As Caged Sun enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+1.

Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

At the beginning of each upkeep, you gain 3 life.

You may spend mana as though it were mana of any color.

{T}: Add {C}{C}{C}{C}{C}.

{5}, {T}: Draw a card for each color among permanents you control.

{T}: Add one mana of any color in your commander's color identity.

Equipped creature gets +3/+3 and has protection from each color that's not in your commander's color identity.

Equip commander {3}

Equip {5}

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Each opponent loses two times X life. You gain life equal to the life lost this way.

Exile target permanent with mana value 4 or greater.

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Target player loses 3 life. You gain 3 life and create three 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add {C}."

Whenever an opponent loses life, you gain that much life.

Each opponent loses X life. You gain life equal to the life lost this way.

Destroy target artifact, enchantment, or planeswalker.

Destroy all creatures. You gain 1 life for each creature destroyed this way.

Trample

Whenever Geode Golem deals combat damage to a player, you may cast your commander from the command zone without paying its mana cost. (You still pay any additional costs.)

({T}: Add {W} or {B}.)

As Godless Shrine enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

You gain 20 life.

Suspend 10--{W} (Rather than cast this card from your hand, you may pay {W} and exile it with ten time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life.

{T}: Add {C}.

{4}, {T}, Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

Isolated Chapel enters the battlefield tapped unless you control a Plains or a Swamp.

{T}: Add {W} or {B}.

Whenever an opponent casts a noncreature spell, that player loses 2 life and you gain 2 life.

Flying

When Kokusho, the Evening Star dies, each opponent loses 5 life. You gain life equal to the life lost this way.

Flying, lifelink

Whenever another nontoken creature you control dies, return that card to its owner's hand at the beginning of the next end step.

If a creature an opponent controls would die, exile it instead.

Rather than pay {2} for each previous time you've cast this spell from the command zone this game, pay 2 life that many times.

Flying, lifelink

Whenever a player casts a spell, they lose 2 life.

Flying

When Linvala, the Preserver enters the battlefield, if an opponent has more life than you, you gain 5 life.

When Linvala enters the battlefield, if an opponent controls more creatures than you, create a 3/3 white Angel creature token with flying.

Whenever you gain life, each opponent loses 1 life.

Destroy target creature or enchantment.

{1}, {T}: Add {W}{B}.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

At the beginning of your upkeep, you draw a card and you lose 1 life.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Magecraft -- Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life.

+1: You lose 1 life. Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

-3: Each opponent sacrifices a creature with the greatest power among creatures that player controls.

-8: Each opponent may discard a card. If they don't, they lose 3 life. Repeat this process six more times.

Flying

If noncombat damage would be dealt to you, prevent that damage. You gain life equal to the damage prevented this way.

When Purity is put into a graveyard from anywhere, shuffle it into its owner's library.

Flying

Whenever another Angel or Cleric enters the battlefield under your control, you gain life equal to that creature's toughness.

As long as you have at least 7 life more than your starting life total, creatures you control get +2/+2.

Whenever you gain life, target opponent loses that much life.

Scoured Barrens enters the battlefield tapped.

When Scoured Barrens enters the battlefield, you gain 1 life.

{T}: Add {W} or {B}.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

As long as you have 30 or more life, Serra Ascendant gets +5/+5 and has flying.

Shattered Sanctum enters the battlefield tapped unless you control two or more other lands.

{T}: Add {W} or {B}.

As Shineshadow Snarl enters the battlefield, you may reveal a Plains or Swamp card from your hand. If you don't, Shineshadow Snarl enters the battlefield tapped.

{T}: Add {W} or {B}.

Target player draws two cards and loses 2 life.

{T}: Add {C}{C}.

Whenever another creature enters the battlefield, you gain 1 life.

Whenever another creature enters the battlefield, you may gain 1 life.

When Spiritual Guardian enters the battlefield, you gain 4 life.

When Staunch Defenders enters the battlefield, you gain 4 life.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

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

{T}: Add {C}.

{T}: Add {W} or {B}. Activate only if you control a Swamp.

Temple of Silence enters the battlefield tapped.

When Temple of Silence enters the battlefield, scry 1.

{T}: Add {W} or {B}.

Exile target nonland permanent.

Flying, lifelink

At the beginning of each end step, if you gained 4 or more life this turn, create a 4/4 white Angel creature token with flying and vigilance.

Vault of Champions enters the battlefield tapped unless you have two or more opponents.

{T}: Add {W} or {B}.

Lifelink

When Vengeant Vampire dies, destroy target creature an opponent controls and you gain 4 life.

Whenever you gain life, target opponent loses that much life.

{3}{B}{B}: Creatures you control gain lifelink until end of turn.

{1}{W}{B}: Target creature gains lifelink until end of turn.

{1}{W}{B}: Whenever you gain life this turn, each opponent loses that much life.

Each opponent loses 4 life and you gain 4 life.

Zof Bloodbog enters the battlefield tapped.

{T}: Add {B}.