Disperse | Instant | | Return target nonland permanent to its owner's hand. | Ryan Yee
Displacement Wave | Sorcery | | Return all nonland permanents with mana value X or less to their owners' hands. | Seb McKinnon
Harbinger of the Tides | Creature | Merfolk Wizard | You may cast Harbinger of the Tides as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.)
When Harbinger of the Tides enters the battlefield, you may return target tapped creature an opponent controls to its owner's hand. | Svetlin Velinov
Jace, Vryn's Prodigy | Legendary Creature | Human Wizard | {T}: Draw a card, then discard a card. If there are five or more cards in your graveyard, exile Jace, Vryn's Prodigy, then return him to the battlefield transformed under his owner's control. | Jaime Jones
Maritime Guard | Creature | Merfolk Soldier | | Allen Williams
Negate | Instant | | Counter target noncreature spell. | Jeremy Jarvis
Psychic Rebuttal | Instant | | Counter target instant or sorcery spell that targets you.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, you may copy the spell countered this way. You may choose new targets for the copy. | Todd Lockwood
Screeching Skaab | Creature | Zombie | When Screeching Skaab enters the battlefield, mill two cards. | Clint Cearley
Send to Sleep | Instant | | Tap up to two target creatures.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, those creatures don't untap during their controllers' next untap steps. | Cynthia Sheppard
Sigiled Starfish | Creature | Starfish | {T}: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.) | Nils Hamm
Stratus Walk | Enchantment | Aura | Enchant creature
When Stratus Walk enters the battlefield, draw a card.
Enchanted creature has flying. (It can't be blocked except by creatures with flying or reach.)
Enchanted creature can block only creatures with flying. | Aaron Miller
Turn to Frog | Instant | | Until end of turn, target creature loses all abilities and becomes a blue Frog with base power and toughness 1/1. | Warren Mahy