At the beginning of combat on your turn, if you have at least 3 life more than your starting life total, untap target land.

Favored
Whenever your Champion attacks, scry 1.

Flying
Whenever Heraldic Griffin or another creature enters the battlefield under your control, you may put your choice of counter from among lifelink, first strike or vigilance on that creature.
{1}{W}, Remove a counter from a creature you control: That creature gains hexproof and indestructible until end of turn.

Favored

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.

This spell can't be countered.
Flying, ward {3}
Whenever Hoarding Culebre enters the battlefield or attacks, draw a card. Then if you have five or more cards in hand, create a Treasure token.

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 the battlefield or attacks, each player sacrifices a nonland, nontoken permanent. For each player who doesn't, you draw a card.

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

Ikel's Enforcer can't block.
{1}, Sacrifice another creature: Put a +1/+1 counter on Ikel's Enforcer. If the sacrificed creature was a Soldier, Ikel's Enforcer gains menace and haste until end of turn.

Whenever Ikel attacks or blocks, tokens you control gain deathtouch until end of turn.
At the beginning of your upkeep, if you control no other nontoken creatures, create a 1/1 white Soldier creature token.
Escape—{1}{W}{B}, Sacrifice three creatures.

Trample
When Imperfect Fugisaur enters, you may sacrifice an artifact. If you do, it gains haste until end of turn.
Whenever Imperfect Fugisaur deals combat damage to a player, that player sacrifices an artifact. If they can't, you draw a card.

Whenever Implacable Shrine-Guard attacks, for each color, do the following if your devotion to that color is three or greater.
{W} — Create a 1/1 white Human creature token.
{U} — Draw a card.
{B} — Each opponent loses 2 life.
{R} — Create a Treasure token.
{G} — You gain 3 life.

Imposing Oddity enters the battlefield with X +1/+1 counters on it.
Whenever Imposing Oddity becomes spellcharged, put a +1/+1 counter on it.
Spellcharge 4
When Imposing Oddity dies, you may put its counters on another target Ruin you control.

When Indentured Labourer enters the battlefield, you draw a card and lose 1 life.

Flying, first strike, lifelink
At the beginning of your end step, if you gained 3 or more life this turn, draw a card.

Solidarity
Whenever Inspired Denizen attacks, create a 1/1 green Citizen creature token that's tapped and attacking.

Whenever another creature enters the battlefield under your control, you may have Inspired Youth dare X, where X is that creature's power.

Deathtouch
Cybersoul {4}{B}

When Iris Cultist enters, you lose 1 life.
Cybersoul {4}{B}

Whenever you cast an instant or sorcery spell, Ironcliff Blaster gets +1/+1 and gains first strike until end of turn.

Flying
Exile an instant or sorcery spell you control with mana value X: Choose one —
• You gain three times X life.
• Draw X cards, then discard a card.
• Put X +1/+1 counters on JJ Mack.

{X}{R}: Jorgen gets +X/+0 until end of turn.
When Jorgen leaves the battlefield, he deals damage equal to his power to target opponent or planeswalker.
Wander {1}{R}

Whenever a land enters the battlefield under your control, if it doesn't share a name with any other lands you control, create a 1/1 red and green Elemental creature token.

Whenever Kaleidoscope Mage attacks, look at the top three cards of your library. You may put any number of land cards with different names from among them onto the battlefield tapped. Put the rest on the bottom in a random order.