Ancient Ziggurat

Rupture Spire

Land

Rupture Spire enters the battlefield tapped.
When Rupture Spire enters the battlefield, sacrifice it unless you pay .
: Add one mana of any color.

Vivid Grove

Land

Vivid Grove enters the battlefield tapped with two charge counters on it.
: Add .
, Remove a charge counter from Vivid Grove: Add one mana of any color.

Gemhide Sliver

Creature — Sliver (1/1)

All Slivers have ": Add one mana of any color."

Vivid Creek

Land

Vivid Creek enters the battlefield tapped with two charge counters on it.
: Add .
, Remove a charge counter from Vivid Creek: Add one mana of any color.

Forest

Basic Land — Forest

(: Add .)

Mountain

Basic Land — Mountain

(: Add .)

Rootbound Crag

Land

Rootbound Crag enters the battlefield tapped unless you control a Mountain or a Forest.
: Add or .

Terramorphic Expanse

Land

, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Heartstone

Artifact

Activated abilities of creatures cost less to activate. This effect can't reduce the mana in that cost to less than one mana.

Coat of Arms

Artifact

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Metallic Sliver

Artifact Creature — Sliver (1/1)

Quick Sliver

Creature — Sliver (1/1)

Flash
Any player may cast Sliver spells as though they had flash.

Brood Sliver

Creature — Sliver (3/3)

Whenever a Sliver deals combat damage to a player, its controller may create a 1/1 colorless Sliver creature token.

Wild Pair

Enchantment

Whenever a creature enters the battlefield, if you cast it from your hand, you may search your library for a creature card with the same total power and toughness, put it onto the battlefield, then shuffle.

Acidic Sliver

Creature — Sliver (2/2)

All Slivers have ", Sacrifice this permanent: This permanent deals 2 damage to any target."

Amoeboid Changeling

Creature — Shapeshifter (1/1)

Changeling (This card is every creature type.)
: Target creature gains all creature types until end of turn.
: Target creature loses all creature types until end of turn.

Armor Sliver

Creature — Sliver (2/2)

All Sliver creatures have ": This creature gets +0/+1 until end of turn."

Barbed Sliver

Creature — Sliver (2/2)

All Sliver creatures have ": This creature gets +1/+0 until end of turn."

Crystalline Sliver

Creature — Sliver (2/2)

All Slivers have shroud. (They can't be the targets of spells or abilities.)

Frenzy Sliver

Creature — Sliver (1/1)

All Sliver creatures have frenzy 1. (Whenever a Sliver attacks and isn't blocked, it gets +1/+0 until end of turn.)