msem-instigator

{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.”)

Frozen Hinterlands enters tapped.
{T}: Add {W} or {B}.
{1}{W}{B}: Until end of turn, Shrouded Rooftops becomes a 3/3 white and black Illusion creature with with lifelink and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)

Weathered Fortress enters tapped.
{T}: Add {U} or {R}.
{U}{R}: Until end of turn, Weathered Fortress becomes a 1/4 blue and red Golem creature with with “When this creature attacks, switch its power and toughness until end of turn” and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)

Deadwood Grove enters tapped.
{T}: Add {B} or {G}.
{1}{B}{G}: Until end of turn, Deadwood Grove becomes a 2/3 black and green Horror creature with with deathtouch and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)

Dawnlit Battlefield enters tapped.
{T}: Add {R} or {W}.
{2}{R}{W}: Until end of turn, Dawnlit Battlefield becomes a 4/2 red and white Warrior creature with with “This creature has first strike as long as it's attacking” and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)

Lush Outskirts enters tapped.
{T}: Add {G} or {U}.
{3}{G}{U}: Until end of turn, Lush Outskirts becomes a 5/7 green and blue Plant creature with with ward {3} and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)

Gleaming Hot Springs enters tapped unless you control a Mountain.
{T}: Add {W} or {U}.

Deeplife Cavern enters tapped unless you control a Forest.
{T}: Add {U} or {B}.

Calmed Battleground enters tapped unless you control a Plains.
{T}: Add {B} or {R}.

Frigid Highlands enters tapped unless you control an Island.
{T}: Add {R} or {G}.

Sunlit Ruins enters tapped unless you control a Swamp.
{T}: Add {G} or {W}.

Sky-High Spires enters tapped unless you have two or more opponents.
{T}: Add {W} or {U}.

Forgotten Cryovault enters tapped unless you have two or more opponents.
{T}: Add {U} or {B}.

Charbroiled Core enters tapped unless you have two or more opponents.
{T}: Add {B} or {R}.

Wildrune Thicket enters tapped unless you have two or more opponents.
{T}: Add {R} or {G}.

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

Haughty Chateau enters tapped unless you have two or more opponents.
{T}: Add {W} or {B}.

Stormcharged Pyre enters tapped unless you have two or more opponents.
{T}: Add {U} or {R}.

Haunted Woodlock enters tapped unless you have two or more opponents.
{T}: Add {B} or {G}.

Chiseled Cliffside enters tapped unless you have two or more opponents.
{T}: Add {R} or {W}.

Exotic Xenoreef enters tapped unless you have two or more opponents.
{T}: Add {G} or {U}.

Ominous Lair enters tapped unless you have 15 or less life.
{T}: Add {W} or {B}.

Strange Harbor enters tapped unless you have 15 or less life.
{T}: Add {U} or {R}.

Toxic Jungle enters tapped unless you have 15 or less life.
{T}: Add {B} or {G}.

Cliffside Entrance enters tapped unless you have 15 or less life.
{T}: Add {R} or {W}.