Erudite Wizard

Whenever you draw your second card each turn, put a +1/+1 counter on this creature.

Inspiration from Beyond

Mill three cards, then return an instant or sorcery card from your graveyard to your hand.
Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Skyship Buccaneer

Flying
Raid — When this creature enters, if you attacked this turn, draw a card.

Bigfin Bouncer

When this creature enters, return target creature an opponent controls to its owner's hand.

Elementalist Adept

Flash (You may cast this spell any time you could cast an instant.)
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Eaten by Piranhas

Flash
Enchant creature
Enchanted creature loses all abilities and is a black Skeleton creature with base power and toughness 1/1. (It loses all other card types and creature types.)

Fleeting Distraction

Target creature gets -1/-0 until end of turn.
Draw a card.

Witness Protection

Enchant creature
Enchanted creature loses all abilities and is a green and white Citizen creature with base power and toughness 1/1 named Legitimate Businessperson. (It loses all other colors, card types, creature types, and names.)

Island

Dictate of Kruphix

Flash
At the beginning of each player's draw step, that player draws an additional card.