Pionnier

Bestow {5}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attache...

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 coun...

You may have Mercurial Pretender enter the battlefield as a copy of a creature you control, except it has "{2}{U}{U}: Return this creature to its o...

When an opponent casts a spell, sacrifice Lunar Force and counter that spell.

Counter target sorcery spell. Delirium — If there are four or more card types among cards in your graveyard, search the graveyard, hand, and libra...

Flying Tempest Djinn gets +1/+0 for each basic Island you control.

Whenever you draw a card, each opponent mills two cards.

The next sorcery spell you cast this turn can be cast as though it had flash. (It can be cast any time you could cast an instant.) Draw a card.

[+2]: Until your next turn, up to one target creature gets -2/-0 and loses flying. [-3]: Create a 4/4 blue Elemental Bird creature token with flyi...

Counter target spell unless its controller pays {X}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Flying Whenever Master of Predicaments deals combat damage to a player, choose a card in your hand. That player guesses whether the card's mana va...

Put target permanent on top of its owner's library. Investigate. (Create a colorless Clue artifact token with "{2}, Sacrifice this artifact: Draw ...

Flash When Torrential Gearhulk enters the battlefield, you may cast target instant card from your graveyard without paying its mana cost. If that s...

Defender (This creature can't attack.)

Draw three cards. Target player mills three cards.

At the beginning of your upkeep, target opponent mills three cards, then you draw a card for each land card put into their graveyard this way.

Return target creature with mana value X to its owner's hand. You create X 1/1 blue Faerie creature tokens with flying.

Return target creature with mana value X to its owner's hand. You create X 1/1 blue Faerie creature tokens with flying.

Flying {U}: Metropolis Sprite gets +1/-1 until end of turn.

Target player draws seven cards.

Target player draws four cards.

Indestructible As long as your devotion to blue is less than five, Thassa isn't a creature. (Each {U} in the mana costs of permanents you control ...

Flying Whenever Kapsho Kitefins or another creature enters the battlefield under your control, tap target creature an opponent controls.

Until end of turn, target creature you control becomes a blue and red Dragon with base power and toughness 4/4, loses all abilities, and gains flyi...