Selesnya Guildgate

This land enters tapped.
{T}: Add {G} or {W}.

Izzet Boilerworks

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {U}{R}.

Ghostly Prison

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Gruul Guildgate

This land enters tapped.
{T}: Add {R} or {G}.

Sol Ring

Boros Signet

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Propaganda

Island

Reliquary Tower

You have no maximum hand size.
{T}: Add {C}.

Selesnya Signet

Simic Signet

Gruul Signet

Kynaios and Tiro of Meletis

At the beginning of your end step, draw a card. Each player may put a land card from their hand onto the battlefield, then each opponent who didn't draws a card.

Mountain

Lightning Greaves

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}

Forest

Plains

Everflowing Chalice

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.)
This artifact enters with a charge counter on it for each time it was kicked.
{T}: Add {C} for each charge counter on this artifact.