Whenever you activate one of Hieronymus Scratch's loyalty abilities, return up to one card from your graveyard to your hand.
[+1]: You may sacrifice a creature. If you do, create a 5/5 black Demon creature token.
[–2]: You may pay 2 life. If you do, each opponent loses 5 life.
[–4]: You may sacrifice a land. If you do, you may cast a card from your hand without paying its mana cost.

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

When you cast this spell, target player skips their next combat phase.
[+2]: 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.

Indestructible
As long as your devotion to red and white is less than seven, Iroas isn't a creature.
Whenever you attack, you gain 1 life for each attacking creature. If you gained 5 or more life this way, draw a card.

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.

Haste
Whenever Jens Slopeskidder or a land enters the battlefield under your control, put a +1/+1 counter on target creature you control.
Wander—{1}{G}, Return a land you control to its owner's hand.

{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}

Other legendary creatures you control get +1/+1.
Whenever a legendary creature you control attacks, exile the top card of your library. You may play that card this turn.
Whenever you cast your fifth spell each turn, Juana deals 10 damage to any target.

Indestructible
As long as your devotion to green and white is less than seven, Karametra isn't a creature.
Enchantments and enchanted permanents you control have “When this permanent becomes tapped for the first time during each of your turns, untap it.”

Indestructible
As long as your devotion to red, white and black is less than nine, Karda isn't a creature.
Whenever you attack, creatures you control get +2/+1 until end of turn. At the end of combat, if Karda dealt combat damage to a player, sacrifice him, then search your library and/or graveyard for a card named Iroas, Honor-Bound and a card named Mogis, Rage-Crowned and put them onto the battlefield, then shuffle.

Indestructible
As long as your devotion to blue and red is less than seven, Keranos isn't a creature.
Noncreature spells you cast cost {1} less to cast.
Whenever you cast a noncreature spell, Keranos deals 1 damage to each opponent.

Indestructible
As long as your devotion to red and green is less than seven, Klothys isn't a creature.
Whenever a creature you control becomes the target of a spell or ability you control, that creature gets +2/+2 and gains trample and haste until end of turn. This ability triggers only once for each creature each turn.

Koios, Spear of Karda enters the battlefield with a number of additional loyalty counters on him equal to your devotion to red.
[+1]: Exile the top three cards of your library. You may cast one of them.
[–3]: Koios deals damage to any nonplayer target equal to your devotion to red.
[–X]: Choose up to X target creatures with total mana value X or less. For each creature chosen this way, create a token that's a copy of it, except it has haste. Sacrifice those tokens at the beginning of the next end step.

Indestructible
As long as your devotion to green and blue is less than seven, Kruphix isn't a creature.
Whenever you tap a permanent for mana, add one mana of any type that permanent produced.

Vigilance
Whenever Kynaios, Blade-Bound enters the battlefield or attacks, reveal the top five cards of your library. You may put an enchantment card or a card with a Blessing from among them into your hand. Put the rest on the bottom of your library in any order.

Whenever Kywon attacks, create an X/X blue Drake creature token with flying, where X is the number of instant and/or sorcery cards in your graveyard.
You may sacrifice another creature as an additional cost to cast instant and sorcery spells. If you do, that spell costs {2} less to cast.
Escape—{2}{U}{B}, Exile three instant and/or sorcery cards from your graveyard.

At the beginning of your upkeep, remove all counters from La Bete du Harnelle, then put two different counters of your choice not removed this way from among deathtouch, reach, vigilance, trample, or hexproof on it.

Vigilance, trample
As long as there are five or more instant and/or sorcery cards in your graveyard, Lagoroth, Century's Apex has haste and ward {5}.
As long as there are ten or more instant and/or sorcery cards in your graveyard, Lagoroth gets +10/+10.

Kraken, Leviathan, Octopus, and Serpent spells you cast cost {X} less to cast, where X is your devotion to blue.

Flash
When Louna, the Ever-Learning enters the battlefield, for each kind of counter among permanents you control, you may put a counter of that kind on Louna, the Ever-Learning.

Haste
Lucille, Ruthless Warlord has first strike as long as she's attacking.
If another source would deal damage to a permanent other than Lucille or to a player, it deals double that damage to that permanent or player instead.
Escape—{3}{B}{R}, Pay 8 life.

At the beginning of combat on your turn, up to one target creature you control has base power and toughness X/X until end of turn, where X is the number of enchantments you control.
When Lykaretos dies, bless target land.

Indulgence
Whenever you indulge, create a 1/1 blue Gargoyle artifact creature token with flying.

[+1]: Exile up to one target enchantment or creature. Return it to the battlefield under its owner's control at the beginning of the next upkeep.
[–2]: Exile target creature until target nonland permanent you control leaves the battlefield.
[–4]: You may put a permanent card with mana value 3 or less from your hand or graveyard onto the battlefield.