Whenever a nontoken creature you control enters, surveil 1.
{G}, Exile this enchantment: Return target card from your graveyard to your hand. Activate only as a sorcery.

Deathtouch

Whenever another nontoken permanent you control is returned to hand, you may create a token that's a copy of it. Do this only once each turn.
Each creature card with mana value 3 or less in your hand has ninjutsu {G}{U}.

At the end of combat on your turn, you may sacrifice another creature. If you do, Aoushun's Presence deals 2 damage to each opponent that creature attacked this turn and you draw a card.
{B}{R}: Aoushun's Presence becomes a 3/2 Dragon creature with flying in addition to its other types.

When this creature enters, create a Treasure token.
Whenever you sacrifice an artifact or enchantment, this creature gets +2/+0 and gains trample until end of turn.

When this creature enters, mill three cards, then you may exile an instant, sorcery, or Subroutine card from your graveyard. You may cast a copy of that card. If you don't, cache it.

Cards in graveyards lose all abilities.
{1}: Put target card from a graveyard on the bottom of its owner's library. Activate only as a sorcery.
Cycling {2}

Level up {2}{U}
[level 1-2]
[level 3+] Flying

This land enters tapped.
Level up {U}{U}{U}
[level 1-2] Vigilance
This land is also a creature.
[level 3+] Vigilance
This land is also a creature.

When this land enters, sacrifice it. If you do, search your library for a basic Mountain or Forest card, put it onto the battlefield tapped, then shuffle.
{1}{R}{R}{G}{G}, Discard this card: Target creature you control gets +2/+0 until end of turn. It deals damage equal to its power to up to one target creature you don't control.

Level up {G/U}
[level 3-5] Whenever this creature deals damage to a player, draw a card.
[level 6+] Whenever a creature you control deals damage to a player, draw a card.

Equipped creature gets +1/+1.
Ninjutsu abilities you activate cost {1} less to activate.
Whenever a Ninja creature you control enters, you may attach Arushi to that creature.
Equip {1}

Flying
Flow — {3}{U}: Target player mills three cards.

Choose target creature you control. When that creature leaves the battlefield this turn, choose one —
• Create a token that's a copy of it.
• Search your library for a creature card with lesser mana value, put it onto the battlefield, then shuffle.

When this creature enters, each player may cache the top card of their library face down.
{3}{G}: This creature gets +3/+3 until end of turn. Activate only once each turn.

When this creature enters, create a 4/4 colorless Vehicle artifact token named Hardsuit with crew 3.
Artifact tokens and enchantment tokens you control have exalted.

Trample
Whenever Aurore enters or attacks, surveil 3, then return all land cards from your graveyard to the battlefield tapped.

When this enchantment enters, if it was cast, return target creature card from your graveyard to the battlefield.
At the beginning of your upkeep, exile up to one target creature you control, then return that card to the battlefield under its owner's control.

When this creature enters, reveal cards from the top of your library until you reveal a land card. Put that card into your hand and the rest into your graveyard.

{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast creature spells with level up or pay level up costs.
{X}, {T}: This land becomes a copy of target creature you control with level up and mana value X.

Create a token that's a copy of target creature you control, except it has base power and toughness X/X, where X is the number of Islands you control plus the number of cards with a cycling ability in your graveyard.
Islandcycling {2}

Choose one or more —
• Exile each artifact with mana value X or less.
• Exile each creature with mana value X or less.
• Exile each enchantment with mana value X or less.

Whenever one or more cards are put into exile from graveyards and/or the battlefield during your turn, create a 1/1 blue Bird creature token with flying.

[+1]: Draw a card for each different mana value among spells you've cast this turn.
[–X]: Exile target nonland, nontoken permanent with mana value X or less. You create a colorless Saga enchantment token with time loop and “r3— You may cast a copy of the exiled card without paying its mana cost.”
[–8]: You take an extra turn after this one, and each opponent takes an extra turn after the last extra turn. You gain control of each opponent during that player's next turn.

Whenever this Subroutine runs, you draw three cards and you lose 3 life.