Wildcourt Seeker's power and toughness are each equal to the number of land types among lands you control.
Whenever Wildcourt Seeker enters the battlefield or attacks, put up to one target land card from your graveyard onto the battlefield under your control.

Multitude {4}{W}
{W}, {T}: Put a +1/+1 counter on another target creature.

Haste
When Wildfang Cavalier dies, create a 3/1 red Dinosaur creature token. It gains haste until end of turn. If it's your combat phase, there is an additional combat phase after this phase.

Flash
Multitude {4}{U}{U}
You may have Wildkin Imposter enter the battlefield as a copy of any creature on the battlefield.

Wildtrail Hermit enters the battlefield with a +1/+1 counter on it.
When Wildtrail Hermit dies, you may put its counters on target creature you control.

Choose creature or land. Reveal the top four cards of your library. Put all cards of the chosen type revealed this way into your hand and the rest into your graveyard.

Tap up to one target creature. Creatures you don't control don't untap during their controllers' next untap step.
Flashback {4}{U}

Flying, vigilance
{W}, {T}: Tap target creature.

Destroy all creatures and all planeswalkers. Each opponent who controlled two or more permanents destroyed this way draws a card.

Lifelink, ward {1}
Other Advisors you control have ward {1}.

Whenever Witchfinder Artur enters the battlefield or attacks, each opponent mills two cards and loses 2 life.
Whenever you cast an instant or sorcery spell, you may exile target instant or sorcery card with mana value less than that spell's mana value from an opponent's graveyard. If you do, cast a copy of the exiled card without paying its mana cost.

Menace
Cybersoul {3}{B}

Trample
Whenever Wolf-Whistle Satyr deals combat damage to a player or planeswalker, you may sacrifice it. If you do, bless target creature you control.

Workshop Helper enters with a +1/+1 counter on it.
{T}: Move a counter from target creature you control onto another target creature. Activate only as a sorcery.

As long as you control four or more lands with different names, Worldtreader Beast can't be blocked by creatures with power 2 or less.

When Worshipped Diva enters the battlefield, if a creature died this turn, create a 2/1 red Zombie creature token with menace.

Lifelink
When Wretched Sackman dies, create a 2/2 black Zombie creature token with “This creature can't block.”

When Writheling enters the battlefield, exile up to one target card in a graveyard. If you do, each opponent loses 1 life and you gain 1 life.
When Writheling leaves your graveyard, draw a card.

Choose one —
• Wyrmshot deals 3 damage divided as you choose among one, two, or three targets.
• Wyrmshot deals 6 damage to target creature, planeswalker, or battle.

[+2]: Mill three cards. You gain 3 life.
[+1]: Return target land card from your graveyard to the battlefield. It becomes a 2/2 black Zombie creature in addition to its other types.
[–X]: Target opponent sacrifices a nonland permanent with mana value X or greater.
[–12]: You get an emblem with “Whenever a player sacrifices a permanent, you may draw a card.” Then each opponent sacrifices five permanents.

Whenever your Champion attacks, Xarr's Mockery gains indestructible until end of turn.

Integrate up to two target creatures with total toughness 6 or less.

At the beginning of combat on your turn, you may integrate another creature you control. If you don't, tap Xavvac, Corrupter Core.
Permanents you control with cards integrated onto them have lifelink and deathtouch.

Trample
Whenever you amp it up, double Xeon, BPM Savant's power until end of turn.

At the beginning of each opponent's upkeep, untap up to one permanent you control. You may cast spells as though they had flash until end of turn.
[+2]: Surveil 1, then draw a card.
[–3]: Choose a nonland, non-Xirix card name. Exile all permanents with that name.
[–9]: Shuffle any number of cards from your graveyard into your library. Xirix deals that much damage to any non-Xirix target, and you gain that much life.