Each opponent must attack you or a planeswalker you control with at least one creature each combat if able.
At the beginning of your end step, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

As Unclaimed Territory enters the battlefield, choose a creature type.
: Add .
: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.

Unfriendly Fire deals 4 damage to any target.

: Add .
, : Add one mana of any color.

Target creature gets +2/+2 until end of turn. If it's a Vampire, it gains first strike until end of turn.

At the beginning of your upkeep, exile the top card of your library. If it's a nonland card, you may cast that card this turn.
Whenever you cast your third spell in a turn, you may transform Vance's Blasting Cannons.

Destroy target creature with power 3 or less.

As Vanquisher's Banner enters the battlefield, choose a creature type.
Creatures you control of the chosen type get +1/+1.
Whenever you cast a creature spell of the chosen type, draw a card.

Until end of turn, target creature gains "When this creature dies, return it to its owner's hand."
Draw a card.

Whenever Verdant Sun's Avatar or another creature enters the battlefield under your control, you gain life equal to that creature's toughness.

Whenever Vicious Conquistador attacks, each opponent loses 1 life.

When Vineshaper Mystic enters the battlefield, put a +1/+1 counter on each of up to two target Merfolk you control.

Vigilance, lifelink
, Pay 7 life: Destroy target nonland permanent. Activate this ability only during your turn.

Exile target creature or planeswalker. You gain 2 life.

[+2]: Create a 2/2 black Pirate creature token with menace.
[−3]: Destroy target artifact, creature, or enchantment. Create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")
[−10]: Target player's life total becomes 1.

When Wakening Sun's Avatar enters the battlefield, if you cast it from your hand, destroy all non-Dinosaur creatures.

: Put X +1/+1 counters on target land you control. That land becomes a 0/0 Elemental creature with haste. It's still a land.

Destroy target non-Merfolk creature.

When Wanted Scoundrels dies, target opponent creates two Treasure tokens. (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")

When Watertrap Weaver enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.