msem-instigator

{T}: Add {C}.
{T}, Sacrifice Shifting Cascade: Choose a basic land type other than Island. Create a colorless land token that's an Island and the chosen basic land type. Activate only during your upkeep.

({T}: Add {G} or {U}.)
Whenever Shifting Glade becomes tapped, you lose 1 life unless you control two or more basic lands.

{T}: Add {C}.
{T}, Sacrifice Shifting Grove: Choose a basic land type other than Forest. Create a colorless land token that's a Forest and the chosen basic land type. Activate only during your upkeep.

{T}: Add {C}.
Discard Shikai's Redoubt: Exile up to two target cards from graveyards.

{T}, Pay 1 life: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell.

When Sights Beyond enters the battlefield, scry 3.
Concord — At the beginning of your upkeep, if there are four or more card types among permanents you control, draw a card.

Cards can't leave graveyards.

As Silent Hypnotist enters the battlefield, choose a noncreature card name.
Spells with the chosen name can't be cast.
Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Each creature gets -X/-X until end of turn. Destroy each artifact and enchantment with mana value X or less.

Solar Flare deals 3 damage to any target. You gain 3 life.

Counter target noncreature spell unless its controller pays {2}.

({T}: Add {R} or {W}.)
Spiraling Canyon enters the battlefield tapped unless you control a basic Mountain or a basic Plains.

Lifelink
When Stalked Healer enters the battlefield, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

You gain 7 life.
Coalesce {5}{G}{G} (You may cast this from your graveyard for {5}{G}{G}. If you do, put it onto the battlefield as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Counter target noncreature spell. Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Choose a nonland card type. Target player reveals their hand. You choose a card of the chosen type from it. That player discards that card.

Stormsurge deals 3 damage to any target.
Orchestrate {R} (You may exile this card from your hand anytime you could cast a sorcery for its orchestrate cost. When you next resolve a spell, you may cast this from exile without paying its mana cost.)

At the beginning of your upkeep, Suitor of the Sea deals 1 damage to each player.

Return target creature to its owner's hand. Its controller loses 1 life.

As Sunlit Highland enters the battlefield, you may pay 2 life. If you don't, Sunlit Highland enters the battlefield tapped.
{T}, Sacrifice Sunlit Highland: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

[+1]: Scry 1. Untap up to one target creature.
[–2]: Mill a card for each card type among permanents you control, then you may return a land card and/or a nonland card milled this way to their owner's hand.
[–6]: Until end of turn, you may cast spells from your hand and graveyard without paying their mana costs. If a card would be put into your graveyard from anywhere this turn, exile it instead.

When Terraformer's Globe enters the battlefield, draw a card.
{T}: Target land you control becomes the basic land type of your choice until end of turn.

Enchant nonland permanent
Enchanted permanent's activated abilities can't be activated and triggered abilities of enchanted permanent don't trigger.

The Flames Approach deals 3 damage to any target.
Memento {3}{R}{R} (You may cast this from your graveyard for {3}{R}{R}. If you do, put it onto the battlefield transformed after it resolves. Exile it if it would leave the battlefield or not resolve.)

Vanishing 5 (This permanent enters the battlefield with five time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
The High Prairies enters the battlefield tapped.
{T}: Add one mana of any color.