Drover of the Swine

When Drover of the Swine enters, choose one —
• Conjure a card of your choice from the Three Pigs spellbook onto the battlefield.
• Return up to three target Boar creature cards with different names from your graveyard to the battlefield.

Yavimaya, Cradle of Growth

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

Forest

Plains

Spider-Ham, Peter Porker

When Spider-Ham enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")
Animal May-Ham — Other Spiders, Boars, Bats, Bears, Birds, Cats, Dogs, Frogs, Jackals, Lizards, Mice, Otters, Rabbits, Raccoons, Rats, Squirrels, Turtles, and Wolves you control get +1/+1.

Urborg, Tomb of Yawgmoth

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

Wastewood Verge

{T}: Add {G}.
{T}: Add {B}. Activate only if you control a Swamp or a Forest.

Spymaster's Vault

This land enters tapped unless you control a Swamp.
{T}: Add {B}.
{B}, {T}: Target creature you control connives X, where X is the number of creatures that died this turn. (Draw X cards, then discard X cards. Put a +1/+1 counter on that creature for each nonland card discarded this way.)

Third Little Pig

Whenever you conjure one or more other cards, Third Little Pig perpetually gets +1/+1. This ability also triggers if Third Little Pig is in your graveyard.

Dewdrop Cure

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.)
Return up to two target creature cards each with mana value 2 or less from your graveyard to the battlefield. If the gift was promised, instead return up to three target creature cards each with mana value 2 or less from your graveyard to the battlefield.

First Little Pig

{1}{G/W}: Exile target artifact or enchantment. Activate only once.

Overgrown Tomb

({T}: Add {B} or {G}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

End-Raze Forerunners

Vigilance, trample, haste
When this creature enters, other creatures you control get +2/+2 and gain vigilance and trample until end of turn.

Age-Graced Chapel

This land enters tapped.
{T}: Add {W} or {B}.

Glasswing Grace

Enchant creature
Enchanted creature gets +2/+2 and has flying and lifelink.

Glasswing Grace // Age-Graced Chapel

Prize Pig

Whenever you gain life, put that many ribbon counters on this creature. Then if there are three or more ribbon counters on this creature, remove those counters and untap it.
{T}: Add one mana of any color.

Indatha Triome

({T}: Add {W}, {B}, or {G}.)
This land enters tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)

Hushwood Verge

{T}: Add {G}.
{T}: Add {W}. Activate only if you control a Forest or a Plains.

Swamp

Second Little Pig

{2}{W/B}{W/B}: Second Little Pig perpetually becomes a Boar Spirit with base power and toughness 4/4 and gains flying. Activate only if Second Little Pig isn't a Spirit.

Lend a Ham

Exile target creature. You gain 1 life for each Boar you control.

Porcine Portent

When Porcine Portent enters, conjure a card of your choice from the Three Pigs spellbook onto the battlefield.
Boars you control get +1/+1.

Porcine Portent // Lend a Ham

Yasharn, Implacable Earth

When Yasharn enters, search your library for a basic Forest card and a basic Plains card, reveal those cards, put them into your hand, then shuffle.
Players can't pay life or sacrifice nonland permanents to cast spells or activate abilities.

Putrefying Rotboar

Lifelink
Whenever a Boar you control attacks, each nonland card in defending player's hand perpetually gains "When you cast this spell, you lose 1 life."

Swine Rebellion

If you control three or more Boars with different names, conjure each card from the Three Pigs spellbook onto the battlefield. If you control two or fewer Boars with different names, conjure two cards of your choice from the Three Pigs spellbook into your hand, then put one of them onto the battlefield.

Temple Garden

({T}: Add {G} or {W}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.