mtg.wtf

Indestructible
As long as your devotion to blue and red is less than seven, Keranos isn't a creature.
Reveal the first card you draw on each of your turns. Whenever you reveal a land card this way, draw a card. Whenever you reveal a nonland card this way, Keranos deals 3 damage to any target.

Companion — Your starting deck contains only cards with mana value 3 or greater and land cards.
When Keruga, the Macrosage enters, draw a card for each other permanent you control with mana value 3 or greater.

Whenever Kessig Forgemaster blocks or becomes blocked by a creature, Kessig Forgemaster deals 1 damage to that creature.
At the beginning of each upkeep, if no spells were cast last turn, transform Kessig Forgemaster.

When Kessig Malcontents enters, it deals damage to target player or planeswalker equal to the number of Humans you control.

{4}{G}: Transform Kessig Prowler.

{1}{R}: Kessig Wolf gains first strike until end of turn.

Keymaster Rogue can't be blocked.
When Keymaster Rogue enters, return a creature you control to its owner's hand.

Berzerker — Khârn the Betrayer attacks or blocks each combat if able.
Sigil of Corruption — When you lose control of Khârn the Betrayer, draw two cards.
The Betrayer — If damage would be dealt to Khârn the Betrayer, prevent that damage and an opponent of your choice gains control of it.

Whenever Kill-Zone Acrobat attacks, you may sacrifice another creature or artifact. If you do, Kill-Zone Acrobat gains flying until end of turn.

Flash

Other Cats you control get +2/+1.

When Kinsbaile Courier enters, put a +1/+1 counter on target creature.
Encore {2}{W}

Flying
Whenever another nontoken creature you control dies, you may pay 2 life and exile it. If you do, create a token that's a copy of that creature, except it's 1/1 and has toxic 1.

When Kiora enters, draw two cards, then discard two cards.
Threshold — Whenever Kiora attacks, if there are seven or more cards in your graveyard, you may create Scion of the Deep, a legendary 8/8 blue Octopus creature token.

When Kitchen Finks enters, you gain 2 life.
Persist

This creature has flying as long as it's attacking.

Flying
Whenever Kitesail Skirmisher attacks, another target creature attacking the same player or planeswalker gains flying until end of turn.
Encore {4}{U}

As long as you control a Giant, Kithkin Greatheart gets +1/+1 and has first strike.

{1}{W}: Kitsune Loreweaver gets +0/+X until end of turn, where X is the number of cards in your hand.

Protection from Spirits and from Arcane

When Kjeldoran Dead enters, sacrifice a creature.
{B}: Regenerate Kjeldoran Dead.

Trample
Frenzied Rampage — At the beginning of combat on your turn, choose an opponent at random. Knight Rampager attacks that player this combat if able.
When Knight Rampager dies, it deals 4 damage to target opponent chosen at random.

First strike
As this creature enters, you may put a name sticker on it.
This creature has protection from names that start with the same letter as a name sticker on it.

When Knight of Autumn enters, choose one —
• Put two +1/+1 counters on Knight of Autumn.
• Destroy target artifact or enchantment.
• You gain 4 life.

Protection from black
Exalted