If damage would be dealt to Undergrowth Champion while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from Undergrowth Champion.

Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on Undergrowth Champion.

Undergrowth Scavenger enters the battlefield with a number of +1/+1 counters on it equal to the number of creature cards in all graveyards.

Creatures with islandwalk can be blocked as though they didn't have islandwalk.

Underworld Cerberus can't be blocked except by three or more creatures.

Cards in graveyards can't be the targets of spells or abilities.

When Underworld Cerberus dies, exile it and each player returns all creature cards from their graveyard to their hand.

Constellation — Whenever Underworld Coinsmith or another enchantment enters the battlefield under your control, you gain 1 life.

, Pay 1 life: Each opponent loses 1 life.

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

When Underworld Hermit enters the battlefield, 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.)

Whenever Underworld Sentinel attacks, exile target creature card from your graveyard.

When Underworld Sentinel dies, put all cards exiled with it onto the battlefield.

Unhallowed Cathar can't block.

Unhallowed Phalanx enters the battlefield tapped.

: Add .

, : Add one mana of any color.

Search your library for a Doctor card, reveal it, put it into your hand, then shuffle.

At the beginning of each combat, double the power and toughness of each creature you control until end of turn.

Search your library for a basic land card, put that card onto the battlefield, then shuffle.

Menace (This creature can't be blocked except by two or more creatures.)

, Exile Unwilling Ingredient from your graveyard: You draw a card and you lose 1 life.

Counter target noncreature spell. Untap up to three lands.

: Regenerate Unworthy Dead.

Each land is a Swamp in addition to its other land types.

You may activate the loyalty abilities of Urza, Planeswalker twice each turn rather than only once.

+2: Artifact, instant, and sorcery spells you cast this turn cost less to cast. You gain 2 life.

+1: Draw two cards, then discard a card.

0: Create two 1/1 colorless Soldier artifact creature tokens.

−3: Exile target nonland permanent.

−10: Artifacts and planeswalkers you control gain indestructible until end of turn. Destroy all nonland permanents.

: Add . If you control an Urza's Mine and an Urza's Tower, add instead.

: Add .

Metalcraft — : Add for each Urza's land you control. Activate only if you control three or more artifacts.

Enchant creature

Enchanted creature can't attack or block.

Enchanted creature has ": Add one mana of any color."

Whenever you commit a crime, put a +1/+1 counter on Vadmir, New Blood. This ability triggers only once each turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

As long as Vadmir has four or more +1/+1 counters on it, it has menace and lifelink.

Put any number of cards from your hand on the bottom of your library, then draw that many cards plus one.

Target creature you control gets +2/+0 until end of turn. When that creature leaves the battlefield this turn, you get a boon with "When you cast your next creature spell, it perpetually gets +2/+0."

Draw a card.

Enchant creature

Enchanted creature gets +1/+1.

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

When Vampire Spawn enters the battlefield, each opponent loses 2 life and you gain 2 life.

Destroy target creature with power 3 or less.

Cumulative upkeep—Have an opponent create a 1/1 red Survivor creature token. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Trample; rampage 1 (Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it beyond the first.)

Put a +1/+1 counter on target creature.

Vastwood Hydra enters the battlefield with X +1/+1 counters on it.

When Vastwood Hydra dies, you may distribute a number of +1/+1 counters equal to the number of +1/+1 counters on Vastwood Hydra among any number of creatures you control.

Vastwood Thicket enters the battlefield tapped.

: Add .

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

I — For each player, exile up to one other target enchantment or creature that player controls until Vault 13 leaves the battlefield.

II — You gain 2 life and scry 2.

III — Return two cards exiled with Vault 13 to the battlefield under their owners' control and put the rest on the bottom of their owners' libraries.

Target creature gains flying until end of turn. Untap it.

As Vedalken Squirrel-Whacker enters the battlefield, roll a six-sided die twice. Its base power becomes the first result and its base toughness becomes the second result.

If you would roll one or more six-sided dice, instead roll them and you may exchange one result with Vedalken Squirrel-Whacker's base power or base toughness.

Menace

Whenever you gain life, you may pay . If you do, return target creature card from your graveyard to your hand.

Return up to three target land cards from your graveyard to the battlefield tapped. Create that many 4/2 green Plant Warrior creature tokens with reach.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Whenever you lose life for the first time each turn, put a +1/+1 counter on Vengeful Warchief. (Damage causes loss of life.)

Kicker (You may pay an additional as you cast this spell.)

Flying

When Verix Bladewing enters the battlefield, if it was kicked, create Karox Bladewing, a legendary 4/4 red Dragon creature token with flying.

Defender

Whenever Vertigo Spawn blocks a creature, tap that creature. That creature doesn't untap during its controller's next untap step.

Other Soldier creatures you control get +1/+0.

Equipped creature gets +2/+0.

Equip Soldier

Equip (: Attach to target creature you control. Equip only as a sorcery.)

: Flip a coin. If you win the flip, return Viashino Sandswimmer to its owner's hand. If you lose the flip, sacrifice Viashino Sandswimmer.

Whenever Viashino Weaponsmith becomes blocked by a creature, Viashino Weaponsmith gets +2/+2 until end of turn.

At the beginning of your upkeep, if there are four or more creature cards in your graveyard, return a creature card at random from your graveyard to your hand.

Choose a Background (You can have a Background as a second commander.)

Target creature gains flying until end of turn. If you control a white permanent, return View from Above to its owner's hand.

Other outlaws you control have vigilance and haste. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.)

At the beginning of combat on your turn, you may have Treasures you control become 3/3 Construct Assassin artifact creatures in addition to their other types until end of turn.

Haste

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Target opponent exiles the top X cards of their library. You may cast any number of spells with mana value X or less from among them without paying their mana costs.

Enchant creature

Enchanted creature gets +1/+1.

: Return Vineweft from your graveyard to your hand.