{T}: Add {C}.

{T}: Add {W} or {U}. Adarkar Wastes deals 1 damage to you.

Enchant creature

Enchanted creature gets +2/+2 for each other enchantment on the battlefield.

When Aquatic Incursion enters the battlefield, create two 1/1 blue Merfolk creature tokens with hexproof. (They can't be the targets of spells or abilities your opponents control.)

{3}{U}: Target Merfolk can't be blocked this turn.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.

You draw a card at the beginning of the next turn's upkeep.

Creatures you control have flying.

Creatures your opponents control lose flying and can't have or gain flying.

At the beginning of each end step, if you drew two or more cards this turn, you may put a quest counter on Archmage Ascension.

As long as Archmage Ascension has six or more quest counters on it, if you would draw a card, you may instead search your library for a card, put that card into your hand, then shuffle.

Shroud (This creature can't be the target of spells or abilities.)

Whenever you cast an enchantment spell, draw a card.

Players can't cast spells from graveyards or activate abilities of cards in graveyards.

Whenever a creature dies, you gain 1 life.

{1}, {T}: Add {W}{U}.

Blossoming Sands enters the battlefield tapped.

When Blossoming Sands enters the battlefield, you gain 1 life.

{T}: Add {G} or {W}.

({T}: Add {G} or {U}.)

As Breeding Pool enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}: Add {C}.

{T}: Add {G} or {W}. Brushland deals 1 damage to you.

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

Canopy Vista enters the battlefield tapped unless you control two or more basic lands.

At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.

Destroy all enchantments.

Threshold -- If seven or more cards are in your graveyard, instead destroy all enchantments, then return all cards in your graveyard destroyed this way to the battlefield.

Counter target spell.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Whenever another Merfolk enters the battlefield under your control, put a +1/+1 counter on target Merfolk you control.

Whenever you cast a Merfolk spell, create a 1/1 blue Merfolk creature token with hexproof. (A creature with hexproof can't be the target of spells or abilities your opponents control.)

When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent.

When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control.

Constellation -- Whenever Eidolon of Blossoms or another enchantment enters the battlefield under your control, draw a card.

{U}{U}, {T}: Gain control of target legendary permanent. (This effect lasts indefinitely.)

All permanents are enchantments in addition to their other types.

Whenever you cast an enchantment spell, draw a card.

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

Enchant creature

Enchanted creature gets +1/+1 for each enchantment you control and has first strike.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

When Forerunner of the Heralds enters the battlefield, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on top.

Whenever another Merfolk enters the battlefield under your control, put a +1/+1 counter on Forerunner of the Heralds.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

{T}: Add {C}.

{T}, Sacrifice Ghost Quarter: Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

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

Glacial Fortress enters the battlefield tapped unless you control a Plains or an Island.

{T}: Add {W} or {U}.

When Ground Seal enters the battlefield, draw a card.

Cards in graveyards can't be the targets of spells or abilities.

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

As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Hinterland Harbor enters the battlefield tapped unless you control a Forest or an Island.

{T}: Add {G} or {U}.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

+1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls.

-1: Draw a card. You may play an additional land this turn.

-5: You get an emblem with "At the beginning of your end step, create a 9/9 blue Kraken creature token."

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Spells your opponents cast that target a Merfolk you control cost {2} more to cast.

Abilities your opponents activate that target a Merfolk you control cost {2} more to activate.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Destroy target artifact or enchantment.

Krosan Verge enters the battlefield tapped.

{T}: Add {C}.

{2}, {T}, Sacrifice Krosan Verge: Search your library for a Forest card and a Plains card, put them onto the battlefield tapped, then shuffle.

Tap another untapped Merfolk you control: Kumena, Tyrant of Orazca can't be blocked this turn.

Tap three untapped Merfolk you control: Draw a card.

Tap five untapped Merfolk you control: Put a +1/+1 counter on each Merfolk you control.

Other Merfolk get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

Other Merfolk creatures you control get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

Other Merfolk you control get +1/+1.

Other Merfolk creatures you control get +1/+1.

{T}: Target Merfolk creature can't be blocked this turn.

At the beginning of your end step, untap all Merfolk you control.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

When Merrow Harbinger enters the battlefield, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on top.

Other Merfolk creatures you control get +1/+1.

Whenever you cast a Merfolk spell, you may tap or untap target permanent.

Whenever you cast an enchantment spell, you may draw a card.

Creatures you control get +1/+1.

Whenever you tap a land for mana, add one mana of any type that land produced.

When Mystic Barrier enters the battlefield or at the beginning of your upkeep, choose left or right.

Each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent.

Counter target noncreature spell.

+2: Scry 2.

0: Look at the top card of your library. If it's a land card or a creature card with mana value less than or equal to the number of loyalty counters on Nissa, Steward of Elements, you may put that card onto the battlefield.

-6: Untap up to two target lands you control. They become 5/5 Elemental creatures with flying and haste until end of turn. They're still lands.

Return all artifact and enchantment cards from all graveyards to the battlefield under their owners' control. (Auras with nothing to enchant remain in graveyards.)

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.)

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

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

Prairie Stream enters the battlefield tapped unless you control two or more basic lands.

Prime Speaker Zegana enters the battlefield with X +1/+1 counters on it, where X is the greatest power among other creatures you control.

When Prime Speaker Zegana enters the battlefield, draw cards equal to its power.

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

When Rest in Peace enters the battlefield, exile all graveyards.

If a card or token would be put into a graveyard from anywhere, exile it instead.

Whenever you cast an enchantment spell, draw a card.

Whenever a Merfolk you control deals combat damage to a player, draw a card.

Seaside Citadel enters the battlefield tapped.

{T}: Add {G}, {W}, or {U}.

{1}, {T}: Add {G}{W}.

{1}, {T}: Add {G}{U}.

{T}: Add {C}{C}.

Creatures can't attack you or planeswalkers you control unless their controller pays {X} for each of those creatures, where X is the number of enchantments you control.

At the beginning of your upkeep, you may return target enchantment card from your graveyard to the battlefield.

As long as you control five or more enchantments, each other non-Aura enchantment you control is a creature in addition to its other types and has base power and base toughness each equal to its mana value.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Merfolk spells and Wizard spells you cast cost {1} less to cast.

Whenever Stonybrook Schoolmaster becomes tapped, you may create a 1/1 blue Merfolk Wizard creature token.

Create two 1/1 blue Merfolk Wizard creature tokens.

Tap four untapped Merfolk you control: Return Summon the School from your graveyard to your hand.

Sunpetal Grove enters the battlefield tapped unless you control a Forest or a Plains.

{T}: Add {G} or {W}.

Exile target creature. Its controller gains life equal to its power.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

{1}{W}: Target Merfolk you control gains protection from the color of your choice until end of turn.

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

As Temple Garden enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Temple of Enlightenment enters the battlefield tapped.

When Temple of Enlightenment enters the battlefield, scry 1.

{T}: Add {W} or {U}.

Temple of Mystery enters the battlefield tapped.

When Temple of Mystery enters the battlefield, scry 1.

{T}: Add {G} or {U}.

Temple of Plenty enters the battlefield tapped.

When Temple of Plenty enters the battlefield, scry 1.

{T}: Add {G} or {W}.

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

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Whenever Thada Adel, Acquisitor deals combat damage to a player, search that player's library for an artifact card and exile it. Then that player shuffles. Until end of turn, you may play that card.

Thornwood Falls enters the battlefield tapped.

When Thornwood Falls enters the battlefield, you gain 1 life.

{T}: Add {G} or {U}.

Tishana, Voice of Thunder's power and toughness are each equal to the number of cards in your hand.

You have no maximum hand size.

When Tishana enters the battlefield, draw a card for each creature you control.

Tranquil Cove enters the battlefield tapped.

When Tranquil Cove enters the battlefield, you gain 1 life.

{T}: Add {W} or {U}.

Tuvasa the Sunlit gets +1/+1 for each enchantment you control.

Whenever you cast your first enchantment spell each turn, draw a card.

Whenever you cast an enchantment spell, you may draw a card.

{T}: Add {C}.

{T}: Add {G} or {U}. Yavimaya Coast deals 1 damage to you.