Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Whenever this creature mutates, create a 3/3 green Beast creature token.

Partner with Silvar, Devourer of the Free (When this creature enters, target player may put Silvar into their hand from their library, then shuffle.)

At the beginning of your end step, if you attacked this turn, create a 1/1 white Human Soldier creature token.

Haste

When Tuktuk the Explorer dies, create Tuktuk the Returned, a legendary 5/5 colorless Goblin Golem artifact creature token.

When Tunnel Surveyor enters, create a 1/1 white Glimmer enchantment creature token.

Return target nonland permanent to its owner's hand. Draw a card.

Adamant — If at least three blue mana was spent to cast this spell, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Whenever one or more land cards are put into your graveyard from anywhere, create a 0/1 green Plant creature token.

, Sacrifice three creatures: Return target land card from your graveyard to your hand.

Strive — This spell costs more to cast for each target beyond the first.

Choose any number of target creatures you control. For each of them, create a token that's a copy of that creature, except it has haste. Exile those tokens at the beginning of the next end step.

Reach

When Twin-Silk Spider enters, create a 1/2 green Spider creature token with reach.

When Twisted Sewer-Witch enters, create a 1/1 black Rat creature token with "This creature can't block." Then for each Rat you control, create a Wicked Role token attached to that Rat. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1. When this Aura is put into a graveyard, each opponent loses 1 life.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I, II — Mill three cards. Then you may exile a creature or enchantment card from your graveyard. If you do, create a 2/2 black Zombie creature token.

III — You gain X life and scry X, where X is the number of Zombies you control.

Create a number of 3/3 green Tyranid Warrior creature tokens with trample equal to the number of opponents you have.

Uchuulon's power is equal to the number of Crabs, Oozes, and/or Horrors you control.

Horrific Symbiosis — At the beginning of your end step, exile up to one target creature card from an opponent's graveyard. If you do, create a token that's a copy of Uchuulon.

Trample

When Uktabi Kong enters, destroy all artifacts.

Tap two untapped Apes you control: Create a 1/1 green Ape creature token.

Ulasht, the Hate Seed enters with a +1/+1 counter on it for each other red creature you control and a +1/+1 counter on it for each other green creature you control.

, Remove a +1/+1 counter from Ulasht: Choose one —

• Ulasht deals 1 damage to target creature.

• Create a 1/1 green Saproling creature token.

Squad (As an additional cost to cast this spell, you may pay any number of times. When this creature enters, create that many tokens that are copies of it.)

Other creatures you control get +1/+1.

Choose one —

• Target player sacrifices a creature or planeswalker of their choice.

• Create a 2/1 white and black Inkling creature token with flying.

Nontoken creatures you control have riot. (They enter with your choice of a +1/+1 counter or haste.)

If a creature you control with a +1/+1 counter on it would deal damage to a permanent or player, it deals double that damage instead.

When Undead Servant enters, create a 2/2 black Zombie creature token for each card named Undead Servant in your graveyard.

When Undercellar Sweep enters, you take the initiative.

Whenever you attack, if you or a player you're attacking has the initiative, you create two 1/1 white Soldier creature tokens that are tapped and attacking.

: Create a Treasure token. Activate only if a creature died this turn. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

When Underworld Hermit enters, create a number of 1/1 green Squirrel creature tokens equal to your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)

As an additional cost to cast this spell, discard a card.

Draw two cards and create two Treasure tokens. (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")

Spree (Choose one or more additional costs.)

+ — Destroy target creature.

+ — Create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

Converge — Create a 1/1 white Kor Ally creature token for each color of mana spent to cast this spell.

When Unshakable Tail enters and at the beginning of your upkeep, surveil 1.

Whenever one or more creature cards are put into your graveyard from your library, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

, Sacrifice a Clue: Return Unshakable Tail from your graveyard to your hand.

Vigilance

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, put a possession counter on Unwilling Vessel.

When Unwilling Vessel dies, create an X/X blue Spirit creature token with flying, where X is the number of counters on Unwilling Vessel.

At the beginning of combat on your turn, put an oil counter on Urabrask's Forge, then create an X/1 red Phyrexian Horror creature token with trample and haste, where X is the number of oil counters on Urabrask's Forge. Sacrifice that token at the beginning of the next end step.

Whenever you cast a Myr spell, create a 1/1 colorless Myr artifact creature token.

At the beginning of combat on your turn, untap each Myr you control.

, : Put three +1/+1 counters on each Myr you control. Activate only during your turn.

When Urza, Lord High Artificer enters, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

Tap an untapped artifact you control: Add .

: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

Vigilance

, : Draw a card, then discard a card.

Whenever you discard one or more artifact cards, create a tapped Powerstone token. This ability triggers only once each turn. (The token is an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Choose two —

• Creatures you don't control get -2/-0 until end of turn.

• Create a tapped Powerstone token.

• Create a tapped 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

• Scry 1, then draw a card.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Urza's Saga gains ": Add ."

II — Urza's Saga gains ", : Create a 0/0 colorless Construct artifact creature token with ‘This creature gets +1/+1 for each artifact you control.'"

III — Search your library for an artifact card with mana cost or , put it onto the battlefield, then shuffle.

At the beginning of your upkeep, put a spore counter on Utopia Mycon.

Remove three spore counters from Utopia Mycon: Create a 1/1 green Saproling creature token.

Sacrifice a Saproling: Add one mana of any color.

At the beginning of combat on your turn, for each Aura and Equipment attached to Valduk, Keeper of the Flame, create a 3/1 red Elemental creature token with trample and haste. Exile those tokens at the beginning of the next end step.

Roll two d6 and choose one result. Destroy each creature with power greater than or equal to that result. Then create a number of 2/2 white Knight creature tokens with vigilance equal to the other result.

Flying

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

At the beginning of each end step, if you gained 4 or more life this turn, create a 4/4 white Angel creature token with flying and vigilance.

When Valkyrie's Sword enters, you may pay . If you do, create a 4/4 white Angel Warrior creature token with flying and vigilance, then attach Valkyrie's Sword to it.

Equipped creature gets +2/+1.

Equip

Enchant creature

Enchanted creature gets +1/+1.

When enchanted creature leaves the battlefield, create a 1/1 white Spirit creature token with flying.

Create two 3/2 red and white Warrior creature tokens with "Whenever this creature and at least one other creature token attack, put a +1/+1 counter on this creature."

Vampires' Vengeance deals 2 damage to each non-Vampire creature. Create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Squad (As an additional cost to cast this spell, you may pay any number of times. When this creature enters, create that many tokens that are copies of it.)

Flying

Suppressing Fire — Whenever Vanguard Suppressor deals combat damage to a player, draw a card.

Whenever Varchild, Betrayer of Kjeldor deals combat damage to a player, that player creates that many 1/1 red Survivor creature tokens.

Survivors your opponents control can't block, and they can't attack you or planeswalkers you control.

When Varchild leaves the battlefield, gain control of all Survivors.

Whenever you attack with one or more Zombies, draw that many cards, then discard that many cards. You gain that much life.

, Exile two cards from your graveyard: Create a tapped 2/2 black Zombie creature token.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Create a 1/1 white Human Soldier creature token and a Food token. (A Food token is an artifact with ", , Sacrifice this artifact: You gain 3 life.")

II, III — You may put an Aura or Equipment card from your hand or graveyard onto the battlefield. If an Equipment is put onto the battlefield this way, you may attach it to a creature you control.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Each player gets three rad counters.

II — Create X 2/2 black Zombie Mutant creature tokens, where X is the total number of rad counters among players.

III — Put two +1/+1 counters on each creature you control that's a Zombie or Mutant.

, , Exile a creature card from your graveyard: Create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Haste

: Target opponent creates X Treasure tokens, where X is the number of Treasure tokens you created this turn.

Whenever an opponent casts a spell or activates an ability, if mana from a Treasure was spent to cast it or activate it, put a +1/+1 counter on target creature, then draw a card.

Lifelink, toxic 1

Whenever you proliferate, choose one —

• If you don't control a creature named The Hollow Sentinel, create The Hollow Sentinel, a legendary 3/3 colorless Phyrexian Golem artifact creature token.

• Target artifact creature you control gains flying and lifelink until end of turn.

Choose two —

• Target player creates two tapped 1/1 green Squirrel creature tokens.

• Counter target loyalty ability of a planeswalker.

• Exile target card from a graveyard.

• Target player gains 3 life.

At the beginning of each upkeep, create a 1/1 green Saproling creature token.