Stunt Double

Flash
You may have this creature enter as a copy of any creature on the battlefield.

Thunder Drake

Flying
Whenever you cast your second spell each turn, put a +1/+1 counter on this creature.

Consider

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
Draw a card.

Chemister's Insight

Draw two cards.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Leapfrog

This creature has flying as long as you've cast an instant or sorcery spell this turn.

Izzet Guildgate

This land enters tapped.
{T}: Add {U} or {R}.

Erratic Visionary

{1}{U}, {T}: Draw a card, then discard a card.

Frostburn Weird

{U/R}: This creature gets +1/-1 until end of turn.

Thriving Isle

This land enters tapped. As it enters, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.

Turn to Frog

Until end of turn, target creature loses all abilities and becomes a blue Frog with base power and toughness 1/1.

Izzet Boilerworks

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {U}{R}.

Snow Day

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
Draw two cards, then discard a card.

Resonance Technician

Flying
When this creature enters, you may discard a card. If you do, investigate twice.
{T}, Tap X untapped artifacts you control: Copy target instant or sorcery spell you control with mana value X. You may choose new targets for the copy.

Island

Ecstatic Electromancer

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever this creature enters or attacks, you may discard a card. If you do, draw a card.

Repeal

Return target nonland permanent with mana value X to its owner's hand.
Draw a card.