Zendikar Rising

Cascade Seer | Creature | Merfolk Wizard | When Cascade Seer enters the battlefield, 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.) | Brian Valeza

Skyclave Squid | Creature | Squid | Defender Landfall — Whenever a land enters the battlefield under your control, Skyclave Squid can attack this turn as though it didn't have defender. | Livia Prima

Tazeem Roilmage | Creature | Merfolk Wizard | Kicker {4} (You may pay an additional {4} as you cast this spell.) When Tazeem Roilmage enters the battlefield, if it was kicked, return target instant or sorcery card from your graveyard to your hand. | Manuel Castañón

Cunning Geysermage | Creature | Human Wizard | Kicker {2}{U} (You may pay an additional {2}{U} as you cast this spell.) When Cunning Geysermage enters the battlefield, if it was kicked, return up to one other target creature to its owner's hand. | Chris Rallis

Cleric of Chill Depths | Creature | Merfolk Cleric | Whenever Cleric of Chill Depths blocks a creature, that creature doesn't untap during its controller's next untap step. | Livia Prima

Expedition Diviner | Creature | Merfolk Wizard | Flying As long as you control another Wizard, Expedition Diviner has "When this creature dies, draw a card." | Heonhwa Choe

Seafloor Stalker | Creature | Merfolk Rogue | {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.) | Cristi Balanescu

Living Tempest | Creature | Elemental | Flash Flying | Campbell White

Risen Riptide | Creature | Elemental | Whenever you cast a kicked spell, Risen Riptide has base power and toughness 5/5 until end of turn. | Zezhou Chen

Zulaport Duelist | Creature | Human Rogue | Flash When Zulaport Duelist enters the battlefield, up to one target creature gets -2/-0 until end of turn. Its controller mills two cards. (They put the top two cards of their library into their graveyard.) | Bryan Sola