Keeper of Fables

Whenever one or more non-Human creatures you control deal combat damage to a player, draw a card.

Growth Cycle

Target creature gets +3/+3 until end of turn. It gets an additional +2/+2 until end of turn for each card named Growth Cycle in your graveyard.

Giant Growth

Target creature gets +3/+3 until end of turn.

Forest

Kazandu Nectarpot

Landfall — Whenever a land you control enters, you gain 1 life.

Towering-Wave Mystic

Whenever this creature deals damage, target player mills that many cards.

Tatyova, Benthic Druid

Landfall — Whenever a land you control enters, you gain 1 life and draw a card.

River Darter

This creature can't be blocked by Dinosaurs.

Arbor Armament

Put a +1/+1 counter on target creature. That creature gains reach until end of turn. (It can block creatures with flying.)

Vastwood Surge

Kicker {4} (You may pay an additional {4} as you cast this spell.)
Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. If this spell was kicked, put two +1/+1 counters on each creature you control.

Scuttlegator

Defender
{6}{G/U}{G/U}: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)
As long as this creature has a +1/+1 counter on it, it can attack as though it didn't have defender.

Return to Nature

Choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Exile target card from a graveyard.

River Heralds' Boon

Put a +1/+1 counter on target creature and a +1/+1 counter on up to one target Merfolk.

Riptide Turtle

Grow from the Ashes

Kicker {2} (You may pay an additional {2} as you cast this spell.)
Search your library for a basic land card, put it onto the battlefield, then shuffle. If this spell was kicked, instead search your library for two basic land cards, put them onto the battlefield, then shuffle.

Moonlit Scavengers

When this creature enters, if you control an artifact or enchantment, return target creature an opponent controls to its owner's hand.

Jadecraft Artisan

When this creature enters, target creature gets +2/+2 until end of turn.

Rosethorn Halberd

When this Equipment enters, attach it to target non-Human creature you control.
Equipped creature gets +2/+1.
Equip {5} ({5}: Attach to target creature you control. Equip only as a sorcery.)

Triton Shorestalker

Thunderous Snapper

Whenever you cast a spell with mana value 5 or greater, draw a card.

Moat Piranhas

Shaper Apprentice

This creature has flying as long as you control another Merfolk.

Titanic Growth

Target creature gets +4/+4 until end of turn.

Triton Waverider

Constellation — Whenever an enchantment you control enters, this creature gains flying until end of turn.

Venture Deeper

Target player mills four cards. (Then exile this card. You may cast the creature later from exile.)

Merfolk Secretkeeper

Merfolk Secretkeeper // Venture Deeper

Wardscale Crocodile

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Iceberg Cancrix

Whenever another snow permanent you control enters, you may have target player mill two cards.

Jade Bearer

When this creature enters, put a +1/+1 counter on another target Merfolk you control.

Fertile Footsteps

Search your library for a basic land card, put it onto the battlefield, then shuffle. (Then exile this card. You may cast the creature later from exile.)

Beanstalk Giant

Beanstalk Giant's power and toughness are each equal to the number of lands you control.

Beanstalk Giant // Fertile Footsteps

Broken Bond

Destroy target artifact or enchantment. You may put a land card from your hand onto the battlefield.

Crashing Tide

This spell has flash as long as you control a Merfolk.
Return target creature to its owner's hand.
Draw a card.

Deeproot Waters

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.)

Wishful Merfolk

Defender
{1}{U}: This creature loses defender and becomes a Human until end of turn.

Gift of Strength

Target creature gets +3/+3 and gains reach until end of turn.

Mist-Cloaked Herald

Octoprophet

When this creature enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Canopy Baloth

Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.

Island

Arboreal Grazer

Reach
When this creature enters, you may put a land card from your hand onto the battlefield tapped.

Skyclave Pick-Axe

When this Equipment enters, attach it to target creature you control.
Landfall — Whenever a land you control enters, equipped creature gets +2/+2 until end of turn.
Equip {2}{G} ({2}{G}: Attach to target creature you control. Equip only as a sorcery.)

Nyxborn Seaguard

Territorial Scythecat

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Landfall — Whenever a land you control enters, put a +1/+1 counter on this creature.

Jungleborn Pioneer

When this creature enters, create a 1/1 blue Merfolk creature token with hexproof. (It can't be the target of spells or abilities your opponents control.)

Plummet

Wishcoin Crab

Vodalian Arcanist

{T}: Add {C}. Spend this mana only to cast an instant or sorcery spell.

Forerunner of the Heralds

When this creature enters, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on top.
Whenever another Merfolk you control enters, put a +1/+1 counter on this creature.