msem-instigator

At the beginning of your upkeep, each player conjures a card named Data-Point into their hand. (It's a sorcery that costs {2} with “Draw a card.”)

Opera House enters the battlefield tapped.
When Opera House enters the battlefield, add one mana of any color.
{T}, Sacrifice Opera House: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Whenever another nonland permanent enters the battlefield under your control, return that permanent to its owner's hand at the beginning of the next end step.

Equipped creature gets +1/+1.
Whenever equipped creature deals combat damage to a player, Ornamental Longbow deals 1 damage to any target.
Equip {2}

Ornamented Evergreen enters the battlefield tapped unless you have two or more opponents.
{T}: Add {G} or {W}.

{1}, Sacrifice Ornate Incense: Draw a card. You gain 1 life.

({T}: Add {G}.)
Wanderlust — Otherworldly Forest enters the battlefield tapped unless you control four or more other differently named lands.
{1}, {T}: Add one mana of any color.

({T}: Add {U}.)
Wanderlust — Otherworldly Island enters the battlefield tapped unless you control four or more other differently named lands.
{1}, {T}: Add one mana of any color.

({T}: Add {R}.)
Wanderlust — Otherworldly Mountain enters the battlefield tapped unless you control four or more other differently named lands.
{1}, {T}: Add one mana of any color.

({T}: Add {W}.)
Wanderlust — Otherworldly Plains enters the battlefield tapped unless you control four or more other differently named lands.
{1}, {T}: Add one mana of any color.

({T}: Add {B}.)
Wanderlust — Otherworldly Swamp enters the battlefield tapped unless you control four or more other differently named lands.
{1}, {T}: Add one mana of any color.

When Over the Horizon enters the battlefield, scry 1.
{T}: Add {C}.
{1}, {T}: Return Over the Horizon to its owner's hand.

{T}, Pay 1 life: Add {G} or {W}.
{1}, {T}, Sacrifice Overgrown Refuge: Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Overgrown Ruins enters the battlefield tapped.
As Overgrown Ruins enters the battlefield, choose a color other than green.
{T}: Add {G} or one mana of the chosen color.

{T}: Add {C}.
{7}, {T}: Copy target instant or sorcery spell with {X} in its mana cost. You may choose new targets for the copy. This ability costs {1} less to activate for each instant and sorcery card in your graveyard.

Prevent all combat damage that would be dealt to attacking creatures you control.

{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Palace Hall enters tapped.
When Palace Hall enters the battlefield, look at the top card of your library. You may put it into your graveyard.
{T}: Add {G} or {W}.

Each instant and sorcery card you own has inscribe. The inscribe cost is equal to its mana cost. (Exile that spell card inscribed on a creature you control. Whenever that creature attacks, its controller may cast a copy of the inscribed card without paying its mana cost. Inscribe only as a sorcery.)

{T}, Sacrifice Palace of Reflections: Choose a land you control. Search your library for a land card with the same name as the chosen land, put it onto the battlefield tapped, then shuffle.

Palace of Tomorrows enters the battlefield tapped.
{T}: Add {U}.
{2}{U}, {T}: Target player mills three cards.

Equipped creature gets +1/+1 and has vigilance and lifelink.
Equip {3}

Whenever you cast a spell with • in its text, you may pay {2} any number of times. For each time you do, copy that spell. You may reselect modes and choose new targets for the copy.
{2}, Sacrifice Palaisun, Maktali's Opus: Draw a card.

{2}, {T}, Sacrifice Pale Morningstar Powder: Put two -1/-1 counters on target creature.

Paomar Shrine enters the battlefield tapped.
{T}: Add {R} or {G}.
{R/G}, {T}, Sacrifice Paomar Shrine: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.