msem-instigator

Frontier Base enters tapped unless you have 15 or less life.
{T}: Add {G} or {U}.

({T}: Add {W} or {B}.)
Deserted Steppe enters tapped unless you control two or more basic lands.

({T}: Add {U} or {R}.)
Torrid Geysers enters tapped unless you control two or more basic lands.

({T}: Add {B} or {G}.)
Mossy Shrine enters tapped unless you control two or more basic lands.

({T}: Add {R} or {W}.)
Gnarled Henge enters tapped unless you control two or more basic lands.

({T}: Add {G} or {U}.)
Secluded Cascade enters tapped unless you control two or more basic lands.

Descended Glacier enters tapped.
{T}: Add {W} or {U}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Descended Hollow enters tapped.
{T}: Add {U} or {B}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Descended Fissure enters tapped.
{T}: Add {B} or {R}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Descended Gorge enters tapped.
{T}: Add {R} or {G}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Descended Countryside enters tapped.
{T}: Add {G} or {W}.
Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Boneyard Pass enters tapped unless you control a basic land.
{T}: Add {W} or {B}.

Frostpoint Caldera enters tapped unless you control a basic land.
{T}: Add {U} or {R}.

Basin Fortress enters tapped unless you control a basic land.
{T}: Add {B} or {G}.

Spinerock Canyon enters tapped unless you control a basic land.
{T}: Add {R} or {W}.

Thawing Valley enters tapped unless you control a basic land.
{T}: Add {G} or {U}.

Crumbling Vestige enters tapped.
When Crumbling Vestige enters, add one mana of any color.
{T}: Add {C}.

Whenever a creature you control dies, put a soul counter on Hill of Souls.
{T}: Add {C}.
{T}, Remove a soul counter from Hill of Souls: Add one mana of any color.

{T}: Add {C}.
{T}: Add {C}{C}. Spend this mana only to cast artifact spells. Activate only if you control three or more artifacts.

Flying, lifelink
If an ability of an enchantment you control triggers, you may have that ability trigger an additional time.

Whenever another creature or enchantment you control enters, you gain 1 life.
{3}{W}{W}, Pay 5 life: Castigated Sister becomes a 5/5 Angel Horror with flying. (This effect doesn't end at end of turn.)

Create a 1/1 colorless Construct Actor creature token for each creature you control.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

Vigilance
Conflict Capturer gets +2/+0 as long as a permanent you controlled left the battlefield this turn.

Each player who controls a creature with power 3 or less draws a card. Then destroy all creatures.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Destroy target creature you don't control with the greatest power.
Until your next turn, prevent all damage that would be dealt to you and planeswalkers you control.
Exile target card from a graveyard. You gain 2 life.