When Gray Merchant of Asphodel enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way.

Whenever Grazing Yaks becomes tapped, if you have at least 3 life more than your starting life total, put a +1/+1 counter on it.
{T}: You gain 1 life.

Flash
This spell costs {1} less to cast for each kind of counter among permanents you control.
Whenever Gregarious Grenouille enters or attacks, choose a counter on a permanent you control. Put a counter of that kind on Gregarious Grenouille if it doesn't have a counter of that kind on it.

When Grim Physician dies, target creature an opponent controls gets -1/-1 until end of turn.

Grisly Musketeer enters tapped.
{B}, Remove a counter from a creature or planeswalker you control: Return Grisly Musketeer from your graveyard to the battlefield.

Groupthink Tank enters tapped.
{T}: Add {W} or {B}.
{4}: Make a pledge. Activate only as a sorcery.

Favored
Legendary creatures you control have trample.

When Gubernatorial Fundraiser enters, make a pledge.
When Gubernatorial Fundraiser dies, create a tapped Treasure token.

Flash
Gulping Meqmaw's power is equal to the total number of permanents with flash you control and instant cards in your graveyard.
Whenever you cast a spell during an opponent's turn, mill two cards.

Flying
Indulgence
Whenever you indulge, look at the top seven cards of your library. You may reveal an instant, sorcery, Demon, or Glauna card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Lifelink
Pay the equip cost of an Equipment you control: Return Gutwrenched Martyr from your graveyard to the battlefield with a finality counter on it. Attach that Equipment to it. Activate only as a sorcery.

Hallowed Chamber enters tapped unless you control a basic non-Swamp land.
{T}: Add {B}.
{1}, {T}, Sacrifice Hallowed Chamber: Create two Treasure tokens.

When Hans Nehmann enters, you may search your library for a card named Marie Laurent or Diago Maldovo and reveal that card. If you do, shuffle, then put the card on top of it.
Legendary Allies you control have lifelink.

{VP}{VP}{VP}, Sacrifice Hardlight Channeler: Create a tapped 4/4 green Elemental Beast creature token.

When Hardlight Hedron enters, draw two cards, then discard a card.
{U}, {T}, Sacrifice Hardlight Hedron: Scry 2.

Vigilance
When Hardlight Paragon enters, distribute two +1/+1 counters among one or two target creatures.

Flying, vigilance
Whenever you amp it up, scry 2.

At the beginning of your upkeep, you may exile target multicolored card from your graveyard. You may cast a copy of it this turn.

At the beginning of your end step, if you control two or more other enchantments, create a 1/1 white Human creature token.

Vigilance
When Hart of Harnelle Wood dies, you may put two +1/+1 counters on target creature you control.

When Harvesting Blade enters, target opponent exiles two cards from their hand.
Equipped creature gets +2/+1 and has “When this creature dies, you may cast a card exiled with Harvesting Blade with equal or lesser mana value without paying its mana cost.”
Equip {3}

Flying
Haubay's Familiar can block only creatures with flying.
Whenever you draw your second card each turn, put a +1/+1 counter on Haubay's Familiar.

Vigilance
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
Spellcharge 2

Flash
When Hazakh Ambassador enters, target creature gains deathtouch until end of turn.
Basic landcycling {1}{B}

Menace
When Hazakh Commandos enters, if you control a black permanent, create a 2/2 colorless Minion creature token with decayed.