msem-instigator

At the beginning of each opponent's upkeep, if that player has no cards in their hand, Cage of Torment deals 2 damage to that player.

({T}: Add {W}.)
As Calcified Dunes enters the battlefield, you may pay 1 life. If you don't, Calcified Dunes enters the battlefield tapped.

Calciform Wastes enters the battlefield tapped. When it does, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this, then you may may put that card into your graveyard.)
{T}: Add {W}.
{2}{W}{W}: Calciform Wastes becomes a Turtle creature. (This effect lasts indefinitely.)

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

Archive 3 (As this enters, shuffle the top three cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Whenever you draw a card from the archived library, put the top card of your main library on the bottom of the archived library.
{G}: Exchange a card from the archived library with a card from your hand.

Canid Simulacrum enters the battlefield with each counter on it from among +1/+1, flying, first strike, deathtouch, lifelink, menace, reach, shield, trample, and vigilance. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)
Whenever a creature enters the battlefield under your control, move two random counters from Canid Simulacrum onto that creature.

Cannoncoil Hermit enters the battlefield with X +1/+1 counters on it.
{1}, {T}: Put a +1/+1 counter on Cannoncoil Hermit.
{1}, {T}, Remove a +1/+1 counter from Cannoncoil Hermit: It deals damage equal to its power to any target.
{3}: Untap Cannoncoil Hermit.

{T}: Add {C}.
{T}, Pay 1 life: Add {U} or {R}.

{T}, Pay 1 life: Add {R} or {G}.
{2}, {T}, Sacrifice Capital Towpath and another permanent: Draw a card. Activate only during your turn.

{3}, {T}: Return target creature card from your graveyard to the battlefield under target player's control. That creature deals damage equal to its power to that player.

{2}, {T}, Sacrifice Cartographer's Chart: Search your library for a land card, reveal it, and put it into your hand, then shuffle.
{2}, {T}, Sacrifice Cartographer's Chart: Draw a card.

Equipped creature gets +1/+1.
Equip {1}

{2}: Carven Guardian gains reach until end of turn.

Catalina's Turf enters the battlefield tapped.
When Catalina's Turf enters the battlefield, you may mill two cards.
{T}: Add {B} or {R}.

Caustic Mangrove enters the battlefield tapped.
{T}: Add {B} or {G}.
{1}, {T}: Add one mana of any color.

{T}: Add {C}.
{T}, Sacrifice Cave of Pleonexia: Destroy target nonbasic land an opponent controls. You and that player each create a Treasure token. Activate only as a sorcery and only if that land's controller controls four or more lands. (A Treasure token is an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Equipped creature gets +3/+3.
Prevent all combat damage that would be dealt to equipped creature.
Equip {3}

When Celestial Scythe enters, attach it to target Angel, Demon, Faerie, or Spirit you control.
Equipped creature gets +2/+1.
Equip {2}

{T}: Add {C}.
Civilized — {T}: Add {C}{C}. Activate only if you control an artifact, a creature, and an enchantment.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Whenever Centipede Engine attacks, you may have target creature block it this turn if able.

Creatures entering or leaving the battlefield don't cause abilities to trigger. (This includes dying.)
Players can't sacrifice creatures to cast spells or activate abilities.

{T}: Add {C}.
{T}: Add one mana of any color among creatures and planeswalkers you control.
{T}: Target player may gain control of target permanent you own. (That player may choose not to.)

When Chamber of Reflections enters the battlefield, draw a card, then choose a legendary card name.
Permanents you control with the chosen name have hexproof and the “legend rule” doesn't apply to them.

Chamber of Splendor enters the battlefield tapped.
When Chamber of Splendor enters the battlefield, you may pay {1}. If you do, create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)
{T}: Add {C}.

{T}: Add {C}.
{T}: Add one mana of any color that a basic land you control could produce.