Whenever this Subroutine runs, exile up to one other target creature or Subroutine. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Whenever one or more permanent cards are put into graveyards, each opponent loses 1 life and you gain 1 life.
[+2]: Mill two cards.
[+1]: Sacrifice a land or discard a land card. If you do, you may play target creature or land card in your graveyard this turn.
[–3]: Each player sacrifices a creature. Return a creature card from your graveyard to your hand.

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

Exile target creature. Create a token that's a copy of it except it's a Ruin artifact instead of its other types and it has spellcharge X, where X is its mana value.

{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}

This land enters tapped. As it enters, choose a color.
When this land enters, return a land you control to its owner's hand.
{T}: Add {C} and one mana of the chosen color.

Flying
Approval — When Judge, Jury, and Executioner enters, exile up to one target creature with mana value less than or equal to the number of colors among permanents you control.

Put a +1/+1 counter on target creature you control. It fights up to one target creature you don't control.
Cycling {R/G}

When this creature enters, cache the top card of your library face down.
Activated abilities of Memories you control cost {1} less to activate.

Whenever a nontoken creature you control dies, you draw a card and you lose 1 life.
{2}{B}, Sacrifice this creature: Create an X/X black Demon creature token, where X is the number of creatures you controlled that died this turn. Activate only as a sorcery.

Haste
Whenever a creature you control dies, if it attacked this turn, this creature deals 1 damage to each opponent.

Lifelink
Whenever you pay life, draw seven cards.

When Kakomanties Circle enters, create a 2/2 black Zombie creature token.
Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.

Level up {1}{W/B}
[level 2-5] Lifelink
[level 6+] Flying, lifelink

At the beginning of combat on your turn, put a level counter on another target creature you control. If it doesn't have level up, it gains level up {2} and “This creature gets +1/+1 for each level counter on it.”

When Kappa Colony enters, create three 1/1 green Plant creature tokens.
Whenever you cast a spell from your graveyard, put a +1/+1 counter on each Plant you control.

Choose one. If your devotion to green is three or greater, you may choose another. The same is true for devotion to white.
• Permanents you control gain hexproof until end of turn.
• Create a token that's a copy of an Aura you control.
• Each opponent sacrifices a creature with power 4 or greater.

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.”

Karda's Emmisary is a 5/5 Illusion enchantment creature as long as you control three or more enchantments.

As Karda's Legacy enters, choose Iroas or Mogis.
• Iroas — Whenever you attack, create a 2/1 red Soldier creature token that's tapped and attacking.
• Mogis — Whenever a nontoken creature you control enters or dies, Karda's Legacy deals 1 damage to each opponent.

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.

You may have Karina's Substitute enter as a copy of a creature you control, except it's 1/4 and a Toy in addition to its other types.

Whenever an opponent gains life or draws a card during your turn, you do the same.
[+1]: You may discard a card. If you do, each player may draw a card.
[+1]: For each player, up to one target creature they control gains vigilance and lifelink until end of turn.
[–7]: Choose a card type. Each opponent who controls more permanents of that type than you sacrifices a number equal to the difference.

Deathtouch
Whenever a creature you control with deathtouch deals damage to a planeswalker, destroy that planeswalker.
Whenever a creature you control deals combat damage to a player, put a deathtouch counter on it. If it already had deathtouch, put a +1/+1 counter on it instead.

Vigilance, lifelink
Whenever Kei attacks alone, it gains first strike until end of turn.