Flying
Indulgence
Whenever you indulge, put a +1/+1 counter on each other creature you control.

Lifelink
As long as you have at least 3 life more than your starting life total, each creature you control with toughness greater than its power assigns combat damage equal to its toughness rather than its power.

Vigilance
Whenever another creature entering the battlefield under your control causes an ability of a permanent you control to trigger, put a +1/+1 counter on that creature and you gain 1 life. This ability triggers only once each turn.

Menace
Whenever Highseas Renegade deals combat damage to a player, exile the top card of their library. You may play that card until the end of your next turn, and mana of any type can be spent to cast it.

You may pay {R} rather than pay this spell's mana cost. Spend only mana produced by artifact sources to cast it this way.
Hired Shot deals 3 damage to any target.

Hivecaste Vukoroq gets +1/+2 as long as you control another creature named Hivecaste Vukoroq.

This spell can't be countered.
Flying, ward {2}
Whenever Hoarding Culebre enters or attacks, draw a card. Then if you have five or more cards in hand, create a Treasure token.

Flying
When Hoarding Rocs enters, look at the top three cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom in a random order.

Hold to the Flame enters with a blaze counter on it.
Whenever you cast an instant or sorcery spell with mana value 4 or greater, put a blaze counter on Hold to the Flame. Then it deals damage equal to the number of blaze counters on it to any target.

Flash
Enchant creature
Enchanted creature can't attack or block.

Holo-Map enters with two charge counters on it.
{1}, {T}, Remove a charge counter from Holo-Map: Target creature can't be blocked this turn. Scry 2.

Ward {3}
Whenever Horror of the Mystic Sea attacks, defending player mills two cards. If they milled two nonland cards this way, Horror of the Mystic Sea can't be blocked this turn.

Ward—Sacrifice a permanent.
Whenever Host of the Neverending Revel enters or attacks, each player sacrifices a nonland, nontoken permanent. For each player who doesn't, you draw a card.

Put a hexproof counter on target creature you control. At the beginning of the next end step, remove a counter from that creature.

When Humble Barkeep enters, create a Food token.
Whenever you sacrifice a Food, put a +1/+1 counter on Humble Barkeep.

Hundred-Handed Pillars enters tapped.
{T}: Add {W} or {U}.
{7}{W/U}: Hundred-Handed Pillars becomes a 4/6 white and blue Giant creature with vigilance until end of turn. It's still a land. This ability costs {X} less to activate, where X is your devotion to white and blue. Activate only once each turn.

Trample
When Hunger's Door enters, you may return target Aura card from your graveyard to the battlefield attached to Hunger's Door.

Target creature has base power and toughness 1/1 and loses all abilities until your next turn.
Draw a card.

Favored
Whenever Iara, Blessed-Hart attacks, Iara and another target attacking creature gain double strike until end of turn.

{VP}{VP}{VP}: Reveal the top seven cards of your library. You may have Iconic Hologram become a copy of a legendary creature card revealed this way until end of turn. Put the revealed cards on the bottom of your library in a random order.

Trample
When Idealistic Voter enters, make a pledge.

{X}, {T}, Sacrifice another creature: Create a token that's a copy of target nontoken creature you control other than Identity Forger with mana value X.

Ignite deals damage to any target equal to your devotion to red.

When you cast this spell, target player skips their next combat phase.
[+1]: Create a 3/1 white Knight creature token with “As long as it's your turn, this creature has indestructible.”
[0]: Exile a permanent card from your graveyard. Return that card to the battlefield at the beginning of your next turn's end step.
[–3]: At the beginning of your next turn's end step, destroy all creatures.

Enchant land
Enchanted land is a 4/4 Dryad creature with reach, vigilance, and haste. It's still a land.
When enchanted land dies, return it to its owner's hand.