msem-instigator

As an additional cost to cast this spell, discard a card.
Draw two cards.

({T}: Add {U} or {R}.)
Torrid Geysers enters the battlefield tapped unless you control two or more basic lands.

Target creature can't be blocked this turn. Scry 1.
Fabled {2}{U} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that creature.)

As Toxic Spring enters the battlefield, you may tap an untapped creature you control. If you don't, Toxic Spring enters the battlefield tapped.
{T}: Add {U} or {B}.

Tranquil Cove enters the battlefield tapped.
When Tranquil Cove enters the battlefield, you gain 1 life.
{T}: Add {W} or {U}.

Enchant creature
When Transcendent Arts enters the battlefield, draw a card.
Enchanted creature can't be blocked by creatures that don't share a creature type with it.

Draw a card. (Cast a copy of this spell once while this creature is on the battlefield.)

Destroy target creature with no counters on it and no permanents attached to it.

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
Scry 2, then draw two cards. If you're in a renaissance, instead scry 2, then draw three cards.

For each permanent type, return up to one target card of that type from your graveyard to your hand. (The permanent types are artifact, creature, enchantment, land, and planeswalker.)

Choose one —
• Return target creature to its owner's hand unless that player pays {1}.
• Counter target noncreature spell unless its controller pays {1}.

Whenever Treasure Hauler attacks, draw a card.
Crew 3 (Tap any number of creatures you control with total power 3 or greater: This Vehicle becomes an artifact creature until end of turn.)

{2}{B}, Sacrifice a creature: Draw a card.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Create a 1/1 red Hound creature token.
II — Create a 4/4 green Rhino Warrior creature token with trample.
III — You may have two target creatures you control fight. If you do and exactly one survives, put four +1/+1 counters on that creature.

Creatures you control gain double strike until end of turn. Whenever a creature you control deals combat damage this turn, put a +1/+1 counter on it.

{2}, Sacrifice another creature: Create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)

{T}, Pay 1 life: Add {G}.
{T}, Pay 1 life, Sacrifice Tropical Grove: Search your library for a Forest card, put it onto the battlefield tapped, then shuffle.

Return all creature cards from your graveyard to the battlefield, then exile all but one of them.

Flying
When Trove Tyrant enters the battlefield, exile the top five cards of your library.
Whenever Trove Tyrant deals combat damage to a player, you may cast an artifact card exiled with it without paying its mana cost.

Flying
Whenever you tap a Mountain for mana, add {R} and that land deals 1 damage to you.
Whenever you tap a non-Mountain land for mana, that land deals 1 damage to Tseng, Warden of the Peak.

Flying
Lands you control have “{T}: Add {R}{R}. This land deals 2 damage to you.”
{R}{R}{R}{R}{R}{R}: Shuffle your library, then exile the top three cards. You may cast one of them without paying its mana cost.

Menace
Whenever an opponent discards a card, monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous.)

Hexproof

Reach, deathtouch

Return up to two target creatures to their owners' hands.