Wee Dragonauts

Flying
Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn.

Worldsoul Colossus

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
This creature enters with X +1/+1 counters on it.

Fresh-Faced Recruit

During your turn, this creature has first strike.

Piston-Fist Cyclops

Defender
As long as you've cast an instant or sorcery spell this turn, this creature can attack as though it didn't have defender.

Pitiless Gorgon

Vernadi Shieldmate

Parhelion Patrol

Flying
Vigilance (Attacking doesn't cause this creature to tap.)
Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

Whisper Agent

Flash
When this creature enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Assure // Assemble

Elf Knight

Assure

Put a +1/+1 counter on target creature. That creature gains indestructible until end of turn.

Assemble

Create three 2/2 green and white Elf Knight creature tokens with vigilance.

Connive

Gain control of target creature with power 2 or less.

Concoct

Surveil 3, then return a creature card from your graveyard to the battlefield.

Connive // Concoct

Discovery

Surveil 2, then draw a card. (To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Dispersal

Each opponent returns a nonland permanent they control with the greatest mana value among permanents they control to its owner's hand, then discards a card.

Discovery // Dispersal

Expansion

Copy target instant or sorcery spell with mana value 4 or less. You may choose new targets for the copy.

Explosion

Explosion deals X damage to any target. Target player draws X cards.

Expansion // Explosion

Find

Return up to two target creature cards from your graveyard to your hand.

Finality

You may put two +1/+1 counters on a creature you control. Then all creatures get -4/-4 until end of turn.

Find // Finality

Flower

Search your library for a basic Forest or Plains card, reveal it, put it into your hand, then shuffle.

Flourish

Creatures you control get +2/+2 until end of turn.

Flower // Flourish

Integrity

Target creature gets +2/+2 until end of turn.

Intervention

Intervention deals 3 damage to any target and you gain 3 life.

Integrity // Intervention

Invert

Switch the power and toughness of each of up to two target creatures until end of turn.

Invent

Search your library for an instant card and/or a sorcery card, reveal them, put them into your hand, then shuffle.

Guilds of Ravnica