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Bident of Thassa | Legendary Enchantment Artifact | | Whenever a creature you control deals combat damage to a player, you may draw a card.
{1}{U}, {T}: Creatures your opponents control attack this turn if able. | Yeong-Hao Han
Breaching Hippocamp | Creature | Horse Fish | Flash (You may cast this spell any time you could cast an instant.)
When Breaching Hippocamp enters the battlefield, untap another target creature you control. | Christopher Burdett
Coastline Chimera | Creature | Chimera | Flying
{1}{W}: Coastline Chimera can block an additional creature this turn. | Dan Scott
Griptide | Instant | | Put target creature on top of its owner's library. | Adam Paquette
Master of Waves | Creature | Merfolk Wizard | Protection from red
Elemental creatures you control get +1/+1.
When Master of Waves enters the battlefield, create a number of 1/0 blue Elemental creature tokens equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.) | Karl Kopinski
Thassa's Emissary | Enchantment Creature | Crab | Bestow {5}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Whenever Thassa's Emissary or enchanted creature deals combat damage to a player, draw a card.
Enchanted creature gets +3/+3. | Sam Burley
Steam Augury | Instant | | Reveal the top five cards of your library and separate them into two piles. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard. | Dave Kendall
Horizon Chimera | Creature | Chimera | Flash
Flying, trample
Whenever you draw a card, you gain 1 life. | Sam Burley
