msem-instigator

Whenever you cast or copy an instant or sorcery spell this turn, Instant of Brilliance deals 1 damage to each opponent.
Copy target instant or sorcery spell you control. You may choose new targets for the copy.

Enchant creature
Enchanted creature gets +3/+0 and has haste and menace.

At the beginning of your upkeep, reveal the top card of your library. Any opponent may have Insurgent Ballads deal damage to them equal to that card's mana value. If a player does, put that card on the bottom of your library. Otherwise, put it into your hand.

Equipped creature gets +1/+2.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Target creature gets +1/+1 until end of turn for each creature token you control.
Put the bottom card of your library into your hand.

Exile the top card of your library. Until end of turn, you may play that card. If that card is an instant or sorcery card, it costs {2} less to cast this turn.

Return up to two target instant and/or sorcery cards from your graveyard to your hand. Exile Intense Revelation.

Creatures you control have haste.
Whenever you attack, put a charge counter on Intensifying Luminescence.
At the beginning of your first main phase, add {R} for each charge counter on Intensifying Luminescence.

Until end of turn, gain control of target creature and it gains haste. Untap it.
Fuse (You may cast one or both halves of this card from your hand.)

Whenever a +1/+1 counter is put on a creature you control, scry 1.
Each creature you control with a +1/+1 counter on it has lifelink.

Choose one —
• Counter target spell unless its controller pays {X}.
• Surveil X, then draw a card.

({T}: Add {U}.)
Interlocked Waterways enters tapped.
{U}, {T}, Reveal a blue card from your hand: Untap target creature.

Whenever a creature enters, it deals damage equal to its power to any target of its controller's choice.
When Interplanar Raid enters, you may aetherize target creature you control. (To aetherize, create a token that's a copy of it, then exile that token.)

This spell costs {1} less to cast for each creature type among creatures you control.
Return up to two target cards from your graveyard to your hand. Exile Intersection of Fates.

{T}: Add {C}.
{1}, {T}: Add two mana of different colors. Activate only if you control five or more lands.

Target creature gets -3/-3 until end of turn.
Target creature gets -3/-3 until end of turn.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Put a +1/+1 counter on target creature you control.
Double the number of counters on target creature you control.
​

Return up to two target creatures to their owner's hands.
Cycling {2} ({2}, Discard this card: Draw a card.)

Exile target nonland permanent.

Whenever you tap a land for mana, add one mana of any type that land produced.
Sacrifice Into Strange Territories: Untap up to two lands.

Into Waiting Jaws deals 5 damage to target creature. If you sacrificed a permanent or discarded a card this turn, Into Waiting Jaws deals 3 damage to that creature's controller.

This spell costs {1} less to cast for each multicolored card in your graveyard.
Draw four cards.

If a card would be put into your graveyard from anywhere, exile it instead.
If you would draw a card, return two cards from your graveyard to your hand instead. If you can't, you lose the game.

Draw three cards, then you may submerge a card from your hand. (To submerge a card, exile it, then put it on the battlefield face down under its owner's control as a 2/2 creature.)

When Into the Lion's Den enters, target opponent reveals their hand. You choose a nonland card from it and exile that card until Into the Lion's Den leaves the battlefield.