msem-instigator

As Dawnlit Battlefield enters the battlefield, you may torment yourself. If you don't, it enters the battlefield tapped. (You lose 3 life unless you discard a card or sacrifice a nonland permanent.)
{T}: Add {R} or {W}.

As Deadwood Grove enters the battlefield, you may torment yourself. If you don't, it enters the battlefield tapped. (You lose 3 life unless you discard a card or sacrifice a nonland permanent.)
{T}: Add {B} or {G}.

Frozen Hinterlands enters the battlefield tapped.
{T}: Add {W} or {U}.
{1}{W}{U}: Until end of turn, Frozen Hinterlands becomes a 4/3 white and blue Spirit creature with with prowess 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.)

Hazy Coppice enters the battlefield tapped.
{T}: Add {U} or {B}.
{2}{U}{B}: Until end of turn, Hazy Coppice becomes a 4/4 blue and black Bird creature with with flying 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.)

As Lush Outskirts enters the battlefield, you may torment yourself. If you don't, it enters the battlefield tapped. (You lose 3 life unless you discard a card or sacrifice a nonland permanent.)
{T}: Add {G} or {U}.

As Shrouded Rooftops enters the battlefield, you may torment yourself. If you don't, it enters the battlefield tapped. (You lose 3 life unless you discard a card or sacrifice a nonland permanent.)
{T}: Add {W} or {B}.

Spires of Caulte enters the battlefield tapped.
{T}: Add {B} or {R}.
{B}{R}: Until end of turn, Spires of Caulte becomes a 3/2 black and red Construct creature with with menace 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.)

Sunlit Fissure enters the battlefield tapped.
{T}: Add {G} or {W}.
{2}{G}{W}: Until end of turn, Sunlit Fissure becomes a 3/5 green and white Elemental creature with with vigilance 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.)

Towering Boughs enters the battlefield tapped.
{T}: Add {R} or {G}.
{3}{R}{G}: Until end of turn, Towering Boughs becomes a 6/6 red and green Treefolk creature with with trample 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.)

As Weathered Fortress enters the battlefield, you may torment yourself. If you don't, it enters the battlefield tapped. (You lose 3 life unless you discard a card or sacrifice a nonland permanent.)
{T}: Add {U} or {R}.