Sygg, River Guide

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.

Seafloor Stalker

{4}{U}: Seafloor Stalker gets +1/+0 until end of turn and can't be blocked this turn. This ability costs {1} less to activate for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Talrand, Sky Summoner

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

Merfolk Seer

When Merfolk Seer dies, you may pay {1}{U}. If you do, draw a card.

Cascade Seer

When Cascade Seer enters, scry X, where X is the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Rootwater Commando

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

Merfolk Traders

When Merfolk Traders enters, draw a card, then discard a card.

Vodalian Mindsinger

Kicker {1}{R} and/or {1}{G}
Vodalian Mindsinger enters with two +1/+1 counters on it for each time it was kicked.
When Vodalian Mindsinger enters, gain control of target creature with power less than Vodalian Mindsinger's power for as long as you control Vodalian Mindsinger.

Waterfront Bouncer

{U}, {T}, Discard a card: Return target creature to its owner's hand.

Volshe Tideturner

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

Darting Merfolk

{U}: Return Darting Merfolk to its owner's hand.

Shipwreck Dowser

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When this creature enters, return target instant or sorcery card from your graveyard to your hand.

Vodalian Soldiers

Tidal Visionary

{T}: Target creature becomes the color of your choice until end of turn.

Voda Sea Scavenger

Domain — When Voda Sea Scavenger enters, look at the top X cards of your library, where X is the number of basic land types among lands you control. You may put one of those cards on top of your library. Put the rest on the bottom of your library in a random order.

Tidal Warrior

{T}: Target land becomes an Island until end of turn.

Saprazzan Outrigger

When Saprazzan Outrigger attacks or blocks, put it on top of its owner's library at end of combat.

Galina's Knight

Rootwater Mystic

{1}{U}: Look at the top card of target player's library.

Blockade Runner

{U}: Blockade Runner can't be blocked this turn.

Coral Merfolk

Rootwater Hunter

{T}: Rootwater Hunter deals 1 damage to any target.

Vodalian Arcanist

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

Sandbar Merfolk

Cycling {2} ({2}, Discard this card: Draw a card.)

Merfolk of the Pearl Trident

Library Larcenist

Whenever Library Larcenist attacks, draw a card.