Put all creatures on the bottom of their owners' libraries.

{4}{W}, {T}, Sacrifice Magus of the Balance: Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

Magus of the Disk enters the battlefield tapped. {1}, {T}: Destroy all artifacts, creatures, and enchantments.

Put all creatures on the bottom of their owners' libraries. Miracle {W} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Each opponent draws a card, then you draw a card for each opponent who drew a card this way.

When Endless Horizons enters the battlefield, search your library for any number of Plains cards, exile them, then shuffle. At the beginning of your upkeep, you may put a card you own exiled with Endless Horizons into your hand.

If an opponent controls more lands than you, search your library for up to three Plains cards, reveal them, put them into your hand, then shuffle.

If you would draw a card, you may put a study counter on Pursuit of Knowledge instead. Remove three study counters from Pursuit of Knowledge, Sacrifice Pursuit of Knowledge: Draw seven cards.

When Spirited Companion enters the battlefield, draw a card.

Enchant opponent At the beginning of enchanted opponent's end step, you and that player each draw a card. When you attack enchanted opponent or a planeswalker they control or when they attack you or a planeswalker you control, sacrifice Tenuous Truce.

Search your library for a Plains card. If target opponent controls more lands than you, you may search your library for an additional Plains card. Reveal those cards, put them into your hand, then shuffle.

Cumulative upkeep—Put two cards from a single graveyard on the bottom of their owner's library. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Castle Ardenvale enters the battlefield tapped unless you control a Plains. {T}: Add {W}. {2}{W}{W}, {T}: Create a 1/1 white Human creature token.

If you control two or more other lands, Cave of the Frost Dragon enters the battlefield tapped. {T}: Add {W}. {4}{W}: Cave of the Frost Dragon becomes a 3/4 white Dragon creature with flying until end of turn. It's still a land.

Desert of the True enters the battlefield tapped. {T}: Add {W}. Cycling {1}{W} ({1}{W}, Discard this card: Draw a card.)

Drifting Meadow enters the battlefield tapped. {T}: Add {W}. Cycling {2} ({2}, Discard this card: Draw a card.)

{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.

Emeria, the Sky Ruin enters the battlefield tapped. At the beginning of your upkeep, if you control seven or more Plains, you may return target creature card from your graveyard to the battlefield. {T}: Add {W}.

{T}: Add {C}. {1}{W}, {T}: Put target enchantment card from your graveyard on top of your library.

Karoo enters the battlefield tapped. When Karoo enters the battlefield, sacrifice it unless you return an untapped Plains you control to its owner's hand. {T}: Add {C}{W}.

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

Minas Tirith enters the battlefield tapped unless you control a legendary creature. {T}: Add {W}. {1}{W}, {T}: Draw a card. Activate only if you attacked with two or more creatures this turn.

({T}: Add {W}.) Mistveil Plains enters the battlefield tapped. {W}, {T}: Put target card from your graveyard on the bottom of your library. Activate only if you control two or more white permanents.

({T}: Add {W}.)

Ruins of Trokair enters the battlefield tapped. {T}: Add {W}. {T}, Sacrifice Ruins of Trokair: Add {W}{W}.

Secluded Steppe enters the battlefield tapped. {T}: Add {W}. Cycling {W} ({W}, Discard this card: Draw a card.)

Flash Flying When Aven Interrupter enters the battlefield, exile target spell. It becomes plotted. (Its owner may cast it as a sorcery on a later turn without paying its mana cost.) Spells your opponents cast from graveyards or from exile cost {2} more to cast.

Choose a color. White creatures you control gain protection from the chosen color until end of turn.

Choose one — • Prevent all combat damage that would be dealt this turn. • Regenerate target creature. • Counter target spell that targets you.

{W}, {T}: Target permanent you control gains protection from instant spells and from sorcery spells until end of turn.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Return target spell to its owner's hand. Draw a card.

When Archaeomancer's Map enters the battlefield, search your library for up to two basic Plains cards, reveal them, put them into your hand, then shuffle. Whenever a land enters the battlefield under an opponent's control, if that player controls more lands than you, you may put a land card from your hand onto the battlefield.

At the beginning of your end step, if you control a creature with power 5 or greater, you may gain 2 life. {T}: Add {C}.

Flying Whenever Aerial Extortionist enters the battlefield or deals combat damage to a player, exile up to one target nonland permanent. For as long as that card remains exiled, its owner may cast it. Whenever another player casts a spell from anywhere other than their hand, draw a card.

Put target attacking creature on the bottom of its owner's library. Its controller gains life equal to its toughness.

Counter target artifact or enchantment spell. Its controller gains life equal to its mana value.

Cast this spell only after combat. Gain control of target nonartifact, nonblack creature that attacked you this turn and put a -1/-0 counter on it.

Put target nonland historic permanent into its owner's library fourth from the top. (Artifacts, legendaries, and Sagas are historic.)

The owner of target nonland permanent shuffles it into their library, then draws two cards.

Exile target nonland permanent. For as long as that card remains exiled, its owner may play it. A spell cast by an opponent this way costs {2} more to cast.

Vigilance As Anointed Peacekeeper enters the battlefield, look at an opponent's hand, then choose any card name. Spells your opponents cast with the chosen name cost {2} more to cast. Activated abilities of sources with the chosen name cost {2} more to activate unless they're mana abilities.

You may reveal this card from your opening hand. If you do, when each opponent casts their first spell of the game, counter that spell unless that player pays {1}. Flying Whenever an opponent casts a spell, counter it unless that player pays {1}.

Flying When Elite Spellbinder enters the battlefield, look at target opponent's hand. You may exile a nonland card from it. For as long as that card remains exiled, its owner may play it. A spell cast this way costs {2} more to cast.

When Eye of Singularity enters the battlefield, destroy each permanent with the same name as another permanent, except for basic lands. They can't be regenerated. Whenever a permanent other than a basic land enters the battlefield, destroy all other permanents with that name. They can't be regenerated.

Creatures without flying can't attack.

All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay {1}."

Until end of turn, target player can't cast instant or sorcery spells, and that player can't activate abilities that aren't mana abilities. Draw a card.

Flying, vigilance {T}: When target creature other than Adarkar Valkyrie dies this turn, return that card to the battlefield under your control.

Enchant creature {W}: Enchanted creature gets +1/+1 until end of turn.

First strike {T}: Brigid, Hero of Kinsbaile deals 2 damage to each attacking or blocking creature target player controls.

Target player can't cast creature spells this turn. Draw a card.

Regenerate target creature. You gain control of that creature if it regenerates this way.

{1}{W}: Target permanent you control gains protection from white until end of turn. {1}: Target spell or permanent becomes white until end of turn.

Play with your hand revealed. If you would draw a card, reveal the top card of your library instead. If it's a creature card, put it into your graveyard. Otherwise, draw a card. Whenever a creature is put into your graveyard from the battlefield, return it to your hand.

Lifelink {4}: Exchange your life total with Evra, Halcyon Witness's power.

Whenever Farrel's Zealot attacks and isn't blocked, you may have it deal 3 damage to target creature. If you do, Farrel's Zealot assigns no combat damage this turn.

Until end of turn, if a creature would enter the battlefield and it wasn't cast, exile it instead. Draw a card.

Cast this spell only during combat. Your opponents can't cast spells this turn. End the combat phase. (Remove all attackers and blockers from combat. Exile all spells and abilities from the stack, including this spell.)

Kicker {W} (You may pay an additional {W} as you cast this spell.) Target player can't cast spells this turn. If this spell was kicked, creatures can't attack this turn.

Reveal the top card of target opponent's library. If it's a land, you gain 1 life. Then that player shuffles. Draw a card at the beginning of the next turn's upkeep.

At the beginning of your upkeep, sacrifice Sacred Mesa unless you sacrifice a Pegasus. {1}{W}: Create a 1/1 white Pegasus creature token with flying.

The next creature card you play this turn can be played as though it had flash. Draw a card.

Flying As Serra's Emissary enters the battlefield, choose a card type. You and creatures you control have protection from the chosen card type.

Flash Flying When Windshaper Planetar enters the battlefield during the declare attackers step, for each attacking creature, you may reselect which player or permanent that creature is attacking. (It can't attack its controller or their permanents.)