Whenever one or more creature cards are put into your graveyard from anywhere, you may choose one and pay {X}, where X is the chosen card's mana value. If you do, create a tapped token that's a copy of it.
{T}: Target player mills two cards.

When The Smoking Strand enters the battlefield, you may search your library for a planeswalker card, reveal it, put it into your hand, then shuffle.
Planeswalkers you control have “+1: Draw a card.”

Whenever equipped creature attacks, you may have it dare 7 until end of turn.
Equip {3}

{T}: Add one mana of any color. Put a tide counter on Tidelock Pearl.
{1}{U}, {T}, Sacrifice Tidelock Pearl: Search your library for a Kraken, Leviathan, Octopus, or Serpent card with mana value less than or equal to the number of tide counters on Tidelock Pearl, put it onto the battlefield, then shuffle.

{T}: Add {C}.
{4}, {T}, Sacrifice Timeworn Crags: Destroy target nonbasic land. This ability costs {1} less to activate for each nonbasic land you don't control.

Spellcharge 2

Titan's Stairs enters the battlefield tapped.
{T}: Add {R} or {W}.
{3}{R/W}: Titan's Stairs becomes a 2/2 red and white Archon creature with flying until end of turn. It's still a land. This ability costs {X} less to activated, where X is your devotion to red and white. Activate only once each turn.

When Totemic Guidestones enters the battlefield, draw a card.
Creature spells you cast cost {1} less to cast.
You may cast creature spells as though they had flash.

Deathtouch
{T}: Add {C}.
Spellcharge 3

{1}, Sacrifice Traveler's Amulet: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Tree of Clues enters the battlefield tapped.
{T}: Add {B}, {R}, or {G}.
{VP}{VP}{VP}{VP}, Discard Tree of Clues: Target creature gets +3/+3 and gains flying until end of turn.

Uncharted Haven enters the battlefield tapped.
As Uncharted Haven enters the battlefield, choose a color.
{T}: Add one mana of the chosen color.

Indestructible
Equipped creature has indestructible as long as it's your turn.
Equip {1}
Spellcharge 5

Whenever you cast a colorless spell, you may pay {C}. If you do, copy it. You may choose new targets for the copy.
Whenever a creature you control attacks, put a +1/+1 counter on it for each other creature you control with the same name as that creature.

When Unknowable Starspawn enters the battlefield, target opponent chooses two —
• You gain 4 life and that opponent loses 4 life.
• That opponent sacrifices a creature.
• That opponent discards a card.

Whenever another creature dies, you may integrate it.
Whenever a creature card is integrated onto Unmolded One, you may have it become a copy of that card until end of turn, except it has Unmolded One's abilities.

Unstable Formation enters the battlefield with three charge counters on it.
{1}, {T}, Remove a charge counter from Unstable Formation: Unstable Formation deals 1 damage to target player or planeswalker. You may sacrifice Unstable Formation. If you do, draw a card.

{T}: Add {C}.
Whenever Unwavering Gates attacks, other creatures you control gain indestructible until end of turn.
Spellcharge 5

Valley Village enters tapped.
{T}: Add {R} or {G}.
{1}, Discard Valley Village: Scry 2.

Spellcharge 2
When Vanquished Conqueror dies, draw a card.

Vault of Poisons enters the battlefield with a dose counter on it.
Whenever a Noble enters the battlefield under your control, put a dose counter on Vault of Poisons.
{4}, {T}: Each opponent loses X life and you gain X life, where X is the number of dose counters on Vault of Poisons.

Vigorous Soundvein enters the battlefield tapped.
When Vigorous Soundvein enters the battlefield, you may pay 1 life. If you do, add one mana of any color other than green.
{T}: Add {G}.

When Vision Herald enters, the first spell target opponent casts during their next turn costs an additional {1} and 1 life to cast.

Flying
At the beginning of your end step, you may exile a card you own from outside the game. Put that card into your hand unless an opponent pays {2} and 2 life.

When Vorpal Titan enters the battlefield, destroy all nonbasic lands.