msem-instigator

Counter target spell. If a permanent spell is countered this way, you may aetherize it. (To aetherize, create a token that's a copy of it, then exile that token.)

When Master Negotiator enters the battlefield, you may gain control of target nonland permanent an opponent controls with mana value 2 or less. If you do, its controller may draw a card. Otherwise, you draw a card.

Instant and sorcery spells you cast cost {1} less to cast.
{U}, {T}, Exile three instant and/or sorcery cards from your graveyard: Draw a card.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, you may switch Master of Tranquility's power and toughness until end of turn.

When Minister of Madness enters the battlefield, create a 0/1 blue Weird creature token with flying.
{2}{U}, Sacrifice a creature: Search your library for an instant or sorcery card with mana value equal to 1 plus the sacrificed creature's mana value, exile that card, then shuffle. Then you may cast that card without paying its mana cost. Activate only as a sorcery.

Look at the top two cards of your library. You may put both of those cards into your graveyard or back on top of your library in any order.
Draw a card.

Flash
Whenever Moonlit Hunter enters the battlefield or you cast a noncreature spell, tap target permanent and untap a second target permanent.

Search your library for up to two cards with different names and reveal them. Target opponent chooses one of those cards. Put the chosen card into your graveyard and the rest into your hand. Then shuffle.

[+1]: Copy the next spell you cast this turn. You may choose new targets for the copy.
[–3]: Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.
[–8]: You get an emblem with “You may cast spells without paying their mana costs.”

Scry 1.
Draw a card.

Create a token that's a copy of target permanent you control, except it isn't legendary. Then put Picture Perfect on the bottom of its owner's library if you cast it from exile.
Leitmotif (If you cast this spell from your hand, exile it as it resolves. When you next cast a spell that shares a color with this card, you may cast this from exile without paying its mana cost.)

Choose one —
• Counter target spell unless its controller pays {X}.
• Counter target spell with mana value X.

Draw a card.
Leitmotif (If you cast this spell from your hand, exile it as it resolves. When you next cast a spell that shares a color with this card, you may cast this from exile without paying its mana cost.)

Counter target spell unless its controller pays {2}.
Wanderlust — If that spell has mana value 2 or less and you control four or more differently named lands, counter that spell.

Flash
Flying
When Powder Scatterer enters the battlefield, exile target noncreature spell. Its controller draws a card.

Flash
Flying
Prodigious Panya has base power and toughness 4/4 during extra turns.

When Prodigious Telemancer enters the battlefield, you may draw a card, then discard a card.
Whenever you cast an instant or sorcery spell, you may aetherize target creature you control. (To aetherize, create a token that's a copy of it, then exile that token.)

Choose one —
• Counter target spell unless its controller pays {2}.
• Draw a card.

Counter target spell unless its controller pays its mana cost. (For example, if a spell costs {1}{U}{U}, its controller must pay {1}{U}{U}.)

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.
Flashback {3}{U}

Flying
When Scion of Torrents enters the battlefield, you may return target nonland permanent to its owner's hand.
Whenever an Island enters the battlefield under your control, you may aetherize Scion of Torrents. (To aetherize, create a token that's a copy of it, then exile that token.)

At the beginning of your upkeep, if six or more cards are in your graveyard, you may transform Scuttling Gnat.

Flying, protection from Dragons

Flash
{U}, Sacrifice Seal of Approval: Counter target spell unless its controller pays {2}.

Reveal the top three cards of your library. Put one into your hand and the rest on the bottom of your library in any order.
Prophecy {2}{U} (Once each turn, you may exile a card with prophecy as you reveal it. When you do, you may cast it for its prophecy cost as long as it's exiled.)