msem-instigator

Exile the top card of each player's library. You may play one of those cards this turn.

As an additional cost to cast this spell, discard a card.
Draw two cards and crystallize twice. (Put a +1/+1 counter on a creature you control or create a Treasure. Then do it again.)

Tap all lands target player controls and that player loses all unspent mana.

Choose one—
• Soul Flame deals X damage to target nonred creature.
• Target red creature gets +X/+0 until end of turn.

Exile target creature. That creature's controller reveals cards from the top of their library until they reveal a creature card. That player puts that card onto the battlefield, then shuffles the rest into their library.

Exile the top card of your library. You may have Spark Inspiration deal 2 damage to each opponent. If you don't, you may play that card until end of turn.

Spearhead deals X damage to target player. (Then exile this card. You may cast the creature later from exile.)

Flip a coin. If you win the flip, draw two cards. Otherwise, discard two cards.

Exile up to three target instant and/or sorcery cards from your graveyard. Until end of turn, you may cast cards exiled this way.
Exile Speedreading.

Whenever you cast your second spell each turn, if it's an instant or sorcery spell, you may pay {1}{R}. If you do, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Spitfire deals 2 damage to target creature. Up to one target creature you control gets +2/+0 until end of turn.

For each creature you control, put a +1/+1 counter on it or create a Treasure token.

Target creature gets +1/+0 and gains first strike until end of turn.
Draw a card.

When Spreading Dissent enters, exile all creatures until Spreading Dissent leaves the battlefield.
{X}: Put a random creature card with mana value X exiled with Spreading Dissent onto the battlefield. Any player may activate this ability.

Target creature gains haste until end of turn. That creature attacks or blocks this turn if able.

Exile target artifact an opponent controls. Until end of turn, you may cast a copy of that card. (You still pay its costs.)

Nonbasic lands target player controls don't untap during that player's next untap step.
Fabled {3}{R} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that player.)

You may discard a card. If you do, draw two cards.
Type leitmotif (If you cast this spell from your hand, exile it as it resolves. When you cast your next spell that shares a type with this card, you may cast this from exile without paying its mana cost.)

Choose one —
• Destroy target artifact or land.
• State Collapse deals damage equal to the number of artifacts you control to any target.

Choose two —
• Gain control of target artifact until end of turn. Untap it. It gains haste until end of turn.
• Create a Gold token. (It's an artifact with “Sacrifice this artifact: Add one mana of any color.”)
• Create a Clue token. (It's an artifact with “{2}, Sacrifice this artifact: Draw a card.”)

Destroy target artifact or nonbasic land.

Destroy target artifact or nonbasic land. Its controller creates a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

You may pay {1}{R}{R} and tap an untapped Knight you control rather than pay this spell's mana cost.
Target untapped creature you don't control blocks this turn if able. Other creatures can't block this turn.

When you cast this spell from your hand, return it to your hand.
Choose one —
• Stormcalling deals 4 damage to any target.
• Exile target artifact.

Stormsurge deals 3 damage to any target.
Orchestrate {R} (You may exile this card from your hand anytime you could cast a sorcery for its orchestrate cost. When you next resolve a spell, you may cast this from exile without paying its mana cost.)