Whenever Ryan attacks, exile cards from the top of your library until you exile a nonland card. You may cast the exiled card without paying its mana cost if it's a spell with mana value less than or equal to Ryan's power. Put the exiled cards not cast this way on the bottom of your library in a random order. Doctor's companion (You can have two commanders if the other is the Doctor.)

{T}: Add {C}. {3}, {T}: Target creature with power 3 or less can't be blocked this turn.

When Aether Hub enters the battlefield, you get {E} (an energy counter). {T}: Add {C}. {T}, Pay {E}: Add one mana of any color.

({T}: Add {R} or {W}.) Alpine Meadow enters the battlefield tapped.

As Ancient Amphitheater enters the battlefield, you may reveal a Giant card from your hand. If you don't, Ancient Amphitheater enters the battlefield tapped. {T}: Add {R} or {W}.

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

{T}: Add one mana of any color. Spend this mana only to cast a creature spell.

{T}: Add {C}. {1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

Archway Commons enters the battlefield tapped. When Archway Commons enters the battlefield, sacrifice it unless you pay {1}. {T}: Add one mana of any color.

{T}, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

{T}: Add {C}. {T}: Add {R} or {W}. Battlefield Forge deals 1 damage to you.

Blast Zone enters the battlefield with a charge counter on it. {T}: Add {C}. {X}{X}, {T}: Put X charge counters on Blast Zone. {3}, {T}, Sacrifice Blast Zone: Destroy each nonland permanent with mana value equal to the number of charge counters on Blast Zone.

Boros Garrison enters the battlefield tapped. When Boros Garrison enters the battlefield, return a land you control to its owner's hand. {T}: Add {R}{W}.

Boros Guildgate enters the battlefield tapped. {T}: Add {R} or {W}.

Indestructible {T}: Add {C}. {5}, {T}: Add five mana in any combination of colors.

As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Citadel Gate enters the battlefield tapped. As Citadel Gate enters the battlefield, choose a color other than white. {T}: Add {W} or one mana of the chosen color.

Whenever City of Brass becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

When you play another land, sacrifice City of Traitors. {T}: Add {C}{C}.

Cliffgate enters the battlefield tapped. As Cliffgate enters the battlefield, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

Clifftop Retreat enters the battlefield tapped unless you control a Mountain or a Plains. {T}: Add {R} or {W}.

{T}: Add {C}. {T}, Sacrifice Command Beacon: Put your commander into your hand from the command zone.

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

Crumbling Vestige enters the battlefield tapped. When Crumbling Vestige enters the battlefield, add one mana of any color. {T}: Add {C}. ({C} represents colorless mana.)

As you create your deck, circle two of the colors below. Cryptic Spires enters the battlefield tapped. {T}: Add one mana of either of the circled colors.

Indestructible {T}: Add {C}.

{T}: Add {C}. {1}, {T}: Until end of turn, your opponents and creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.

{T}: Add {C}. {3}: Return Drownyard Temple from your graveyard to the battlefield tapped.

{T}: Add {W}. {W}, {T}: Prevent the next 2 damage that would be dealt to target legendary creature this turn.

{T}: Add {W}. Channel — {2}{W}, Discard Eiganjo, Seat of the Empire: It deals 4 damage to target attacking or blocking creature. This ability costs {1} less to activate for each legendary creature you control.

{T}: Add {C}. {2}, {T}: Exile target creature you control. {4}, {T}, Sacrifice Endless Sands: Return each creature card exiled with Endless Sands to the battlefield under its owner's control.

{T}: Add one mana of any color that a land an opponent controls could produce.

As Flamekin Village enters the battlefield, you may reveal an Elemental card from your hand. If you don't, Flamekin Village enters the battlefield tapped. {T}: Add {R}. {R}, {T}: Target creature gains haste until end of turn.

As Furycalm Snarl enters the battlefield, you may reveal a Mountain or Plains card from your hand. If you don't, Furycalm Snarl enters the battlefield tapped. {T}: Add {R} or {W}.

When Gallifrey Council Chamber enters the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Time Lord or Alien spell or activate an ability of a Time Lord or Alien.

Gateway Plaza enters the battlefield tapped. When Gateway Plaza enters the battlefield, sacrifice it unless you pay {1}. {T}: Add one mana of any color.

If Gemstone Caverns is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.

Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

Gates you control enter the battlefield untapped. {T}: Add {C}. {T}: Add one mana of any color that a Gate you control could produce.

Grand Coliseum enters the battlefield tapped. {T}: Add {C}. {T}: Add one mana of any color. Grand Coliseum deals 1 damage to you.

{T}: Add {C}. {1}, {T}: Add two mana in any combination of colors. Spend this mana only to cast legendary spells.

Hall of the Bandit Lord enters the battlefield tapped. {T}, Pay 3 life: Add {C}. If that mana is spent on a creature spell, it gains haste.

{T}: Add {C}. {R}, {T}: Target creature gains haste until end of turn. {3}{R}{R}, {T}: If you both own and control Hanweir Battlements and a creature named Hanweir Garrison, exile them, then meld them into Hanweir, the Writhing Township.

{T}: Add {C}. {3}, {T}, Sacrifice Haunted Fengraf: Return a creature card at random from your graveyard to your hand.

{T}: Add {C}. {T}: Each player gains control of all creatures they own.

Inspiring Vantage enters the battlefield tapped unless you control two or fewer other lands. {T}: Add {R} or {W}.

{T}: Add {C}. {1}{W}, {T}: Prevent all combat damage that would be dealt by target attacking creature this turn.

{T}: Add {C}. {4}, {T}: Remove target attacking or blocking creature from combat.

Lorehold Campus enters the battlefield tapped. {T}: Add {R} or {W}. {4}, {T}: Scry 1.

{T}, Pay 1 life: Add one mana of any color.

Mines of Moria enters the battlefield tapped unless you control a legendary creature. {T}: Add {R}. {3}{R}, {T}, Exile three cards from your graveyard: Create two Treasure tokens.

{T}: Add {C}. {T}: Add one mana of any color. Activate only if Mirrex entered the battlefield this turn. {3}, {T}: Create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block." (Players dealt combat damage by it also get a poison counter.)

{T}: Add {C}. {4}, {T}: Exile target attacking creature an opponent controls. At the beginning of the next end step, return it to the battlefield tapped under its owner's control.

Needle Spires enters the battlefield tapped. {T}: Add {R} or {W}. {2}{R}{W}: Needle Spires becomes a 2/1 red and white Elemental creature with double strike until end of turn. It's still a land.

If a spell or ability an opponent controls causes you to discard a card, you may reveal that card and put it on top of your library instead of putting it anywhere else. {T}: Add {C}.

{T}: Add {C}. {5}, {T}, Exile Ominous Cemetery: Target creature's owner shuffles it into their library.

Path of Ancestry enters the battlefield tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {R} or {W}.)

When Plaza of Harmony enters the battlefield, if you control two or more Gates, you gain 3 life. {T}: Add {C}. {T}: Add one mana of any type that a Gate you control could produce.

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a legendary spell. {T}: Add one mana of any color among legendary permanents you control. {3}, {T}, Exile Plaza of Heroes: Target legendary creature gains hexproof and indestructible until end of turn.

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

Remote Farm enters the battlefield tapped with two depletion counters on it. {T}, Remove a depletion counter from Remote Farm: Add {W}{W}. If there are no depletion counters on Remote Farm, sacrifice it.

Restless Bivouac enters the battlefield tapped. {T}: Add {R} or {W}. {1}{R}{W}: Restless Bivouac becomes a 2/2 red and white Ox creature until end of turn. It's still a land. Whenever Restless Bivouac attacks, put a +1/+1 counter on target creature you control.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

{T}: Add {C}. {R/W}, {T}: Add {R}{R}, {R}{W}, or {W}{W}.

Rupture Spire enters the battlefield tapped. When Rupture Spire enters the battlefield, sacrifice it unless you pay {1}. {T}: Add one mana of any color.

Rustvale Bridge enters the battlefield tapped. Indestructible {T}: Add {R} or {W}.

({T}: Add {R} or {W}.) As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {R} or {W}.) Sacred Peaks enters the battlefield tapped.

{T}: Add {C}. {2}, {T}: Return target commander you own from the battlefield to your hand. Activate only during your turn.

Sandstone Needle enters the battlefield tapped with two depletion counters on it. {T}, Remove a depletion counter from Sandstone Needle: Add {R}{R}. If there are no depletion counters on Sandstone Needle, sacrifice it.

Scabland enters the battlefield tapped. {T}: Add {C}. {T}: Add {R} or {W}. Scabland deals 1 damage to you.

As Secluded Courtyard enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type or activate an ability of a creature source of the chosen type.

Sejiri Steppe enters the battlefield tapped. When Sejiri Steppe enters the battlefield, target creature you control gains protection from the color of your choice until end of turn. {T}: Add {W}.

{T}: Add {C}. {R}{W}, {T}: Target creature gets +2/+0 and gains vigilance and haste until end of turn.

Smoldering Spires enters the battlefield tapped. When Smoldering Spires enters the battlefield, target creature can't block this turn. {T}: Add {R}.

{T}: Add {R}. Channel — {3}{R}, Discard Sokenzan, Crucible of Defiance: Create two 1/1 colorless Spirit creature tokens. They gain haste until end of turn. This ability costs {1} less to activate for each legendary creature you control.

Spectator Seating enters the battlefield tapped unless you have two or more opponents. {T}: Add {R} or {W}.

Stone Quarry enters the battlefield tapped. {T}: Add {R} or {W}.

{T}, Pay 1 life: Add {R} or {W}. {1}, {T}, Sacrifice Sunbaked Canyon: Draw a card.

Sundown Pass enters the battlefield tapped unless you control two or more other lands. {T}: Add {R} or {W}.

{T}: Add {C}. {T}: Add one mana of any color. Tarnished Citadel deals 3 damage to you.

Temple of Triumph enters the battlefield tapped. When Temple of Triumph enters the battlefield, scry 1. {T}: Add {R} or {W}.

Tendo Ice Bridge enters the battlefield with a charge counter on it. {T}: Add {C}. {T}, Remove a charge counter from Tendo Ice Bridge: Add one mana of any color.

At the beginning of the end step, if you control no creatures, sacrifice Thran Quarry. {T}: Add one mana of any color.

Thriving Bluff enters the battlefield tapped. As Thriving Bluff enters the battlefield, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

Thriving Heath enters the battlefield tapped. As Thriving Heath enters the battlefield, choose a color other than white. {T}: Add {W} or one mana of the chosen color.

Transguild Promenade enters the battlefield tapped. When Transguild Promenade enters the battlefield, sacrifice it unless you pay {1}. {T}: Add one mana of any color.

{T}: Add {C}. {X}{X}, {T}, Sacrifice Treasure Vault: Create X Treasure tokens.

{T}: Add {C}. {2}, {T}: Target legendary creature becomes a God in addition to its other types. Put a +1/+1 counter on it. {4}, {T}, Sacrifice Tyrite Sanctum: Put an indestructible counter on target God.

As Unclaimed Territory enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.

{T}: Add {C}. {5}, {T}, Exile Underdark Rift: Roll a d10. Put target artifact, creature, or planeswalker into its owner's library just beneath the top X cards of that library, where X is the result. Activate only as a sorcery.

Untaidake, the Cloud Keeper enters the battlefield tapped. {T}, Pay 2 life: Add {C}{C}. Spend this mana only to cast legendary spells.

You may have Vesuva enter the battlefield tapped as a copy of any land on the battlefield.

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

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

Wind-Scarred Crag enters the battlefield tapped. When Wind-Scarred Crag enters the battlefield, you gain 1 life. {T}: Add {R} or {W}.