msem-instigator

Enchant artifact or creature
Enchanted permanent can't attack and its activated abilities can't be activated.

Chosen one ({W}{U}{B}{R}{G}: Transform this permanent.)
When Keeper of Holy Lands enters, you may search your library for an enchantment card, reveal it, then shuffle and put that card on top of it.

Flying
Whenever Keeper of Twisted Light attacks, you gain 3 life.

Vigilance
Whenever Keeper of the Bloodline and at least two other creatures attack, creatures you control get +1/+1 until end of turn.

Whenever you gain life for the first time each turn, create a 1/1 white Cleric creature token.

Lifelink
Creature and Aura cards with mana value 3 or less in your graveyard have revive {2}{W/B}. ({2}{W/B}, Exile that card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

This spell has flash as long as you control another enchantment.
When Kernel Quarantine enters, exile all other creatures until Kernel Quarantine leaves the battlefield.

You gain 3 life.
Conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

Double strike
At the beginning of your upkeep, if Kiboshi is equipped, put a +1/+1 counter on it.

First strike
Whenever an opponent casts a spell, Kiboshi's Guardian gains indestructible until end of turn.

Target creature gets +1/+3 until end of turn.

Destroy target attacking creature.

Whenever you sacrifice an enchantment, exile Kindly Pilgrim. If you do, create a 4/4 white Angel creature token with flying.

Flying
When Kinjiru Sandshaper enters, tap target creature.

Lifelink
Whenever a creature with power less than Kiri, Cloudwalker's power you control enters, you may pay {W}. If you do, you gain 2 life and draw a card.

Lifelink
Whenever one or more other creatures with power 2 or less you control enters, you gain 1 life. If your life total is greater than your starting life total, draw a card instead. This ability triggers only once each turn.

Whenever one or more other creatures you control enter, upgrade each creature you control. (Give each one of the listed counters it doesn't already have. Upgrades are independent.)
• +1/+1
• Flying
• First strike
• Vigilance
• Lifelink

Whenever Knight of the Stag deals combat damage to a player, you may sacrifice it. If you do, search your library for a white legendary creature card, reveal it, put it into your hand, then shuffle.

When Knight's Attendant enters, create a 2/2 white Knight creature token with vigilance.

Create a 2/2 white Knight creature token with vigilance, then populate. (Create a token that's a copy of a creature token you control.)

Enchant creature
When Knightly Valor enters, create a 2/2 white Knight creature token with vigilance. (Attacking doesn't cause it to tap.)
Enchanted creature gets +2/+2 and has vigilance.

Vigilance
Whenever Kodaichi Bladedancer attacks, target creature gets +2/+2 until end of turn.

Double strike
Art of war — At the beginning of your end step, if Kogane's Swordmaster dealt damage to an opponent this turn, put a +1/+1 counter on it.

Equipped creature gets +2/+2.
Art of war — At the beginning of your end step, if equipped creature dealt damage to an opponent this turn, create a 1/1 colorless Samurai creature token.
Equip {2}

First strike
Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)
{6}, {T}: Search your library for a creature card with distorted, put it onto the battlefield, then shuffle.