Orzhov Cluestone

{T}: Add {W} or {B}.
{W}{B}, {T}, Sacrifice this artifact: Draw a card.

Rakdos Cluestone

{T}: Add {B} or {R}.
{B}{R}, {T}, Sacrifice this artifact: Draw a card.

Selesnya Cluestone

{T}: Add {G} or {W}.
{G}{W}, {T}, Sacrifice this artifact: Draw a card.

Simic Cluestone

{T}: Add {G} or {U}.
{G}{U}, {T}, Sacrifice this artifact: Draw a card.

Azorius Guildgate

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

Boros Guildgate

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

Dimir Guildgate

This land enters tapped.
{T}: Add {U} or {B}.

Golgari Guildgate

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

Murmuring Phantasm

Gruul Guildgate

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

Izzet Guildgate

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

Maze's End

This land enters tapped.
{T}: Add {C}.
{3}, {T}, Return this land to its owner's hand: Search your library for a Gate card, put it onto the battlefield, then shuffle. If you control ten or more Gates with different names, you win the game.

Orzhov Guildgate

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

Rakdos Guildgate

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

Selesnya Guildgate

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

Simic Guildgate

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

Dragon's Maze