msem-instigator

The Last Sacred Gate enters tapped.
While you're searching your library, you may play The Last Sacred Gate from your library. (You may only do so during your turn and if you have a land play remaining.)
{T}: Add {C}.

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
Counter target creature spell. If this spell was kicked, create a 1/1 colorless Thopter artifact creature token with flying.

Target player mills four cards.
Draw a card.

Reach
Whenever another creature you control becomes the target of an instant or sorcery spell, that creature gets +3/+3 until end of turn.

Destroy target creature or planeswalker. Create a tapped colorless land token named Fading Rift with “{T}, Sacrifice this land: Add one mana of any color.”

At the beginning of combat on your turn, gain control of target creature an opponent controls with power less than the greatest power among creatures you control until end of turn. Untap that creature. It gains haste until end of turn.

Exile the top five cards of your library. An opponent separates them into two piles. You may put one pile into your hand or draw two cards. Then put the rest of the piles into your graveyard.

Escalate {B}{B} (Pay this cost for each mode chosen beyond the first.)
Choose one or more. You may choose the same mode more than once.
• Destroy target creature.
• Target player draws two cards and loses 2 life.

Whenever Drownyard Colossus or another creature you control enters, any number of target players each mill cards equal to that creature's toughness.
{2}{U}{B}, {T}: Draw a card, then create a 0/3 blue Crab creature token with “{T}: Target player mills a card.”

Surveil 1. You draw a card and you lose 1 life. (To surveil 1, look at the top card of your library. You may put that card into your graveyard.)
Tether (Then if you cast this from your hand, you may exile it tethered to a creature you control. When it dies, you may cast this from exile without paying its mana cost.)

As an additional cost to cast this spell, sacrifice X lands and/or creatures.
This spell can't be countered.
Create X tapped colorless enchantment land tokens named Paradise with hexproof and “{T}: Add one mana of any color.”

Choose one or both—
• Target creature gets -4/-4 until end of turn.
• Return target creature card with mana value 1 from your graveyard to the battlefield.

Flying
Whenever you make first contact, Curio Hellkite deals 2 damage to any target. (You make first contact the first time each turn you cast a spell with a name not in your graveyard or control already.)

Flying
When Percy's Messenger enters, you gain 2 life. You may put a lore counter on a Saga you control.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)

Lifelink
When you attain Sojourner of the Beyond, create two 1/1 white Spirit creature tokens with flying. They gain haste until end of turn.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Destroy target creature. It can't be regenerated.

Flying
Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)

Return two instant and/or sorcery cards at random from your graveyard to your hand. Exile Thoughts Reborn.

Target instant or sorcery card in your graveyard gains flashback until end of turn. Its flashback cost is equal to its mana cost.
Flashback—{R}, Discard a card. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When you cast Aspect of Shifting Storms, create a token that's a copy of it.
You may have Aspect of Shifting Storms enter as a copy of any creature on the battlefield, except if it's a token it has no mana cost.

Flying, first strike, vigilance, lifelink
When Bastion Valkyrie dies, create three Function tokens with “Choose a creature targeted by this spell. It gains flying, first strike, vigilance, and lifelink until end of turn.” (They're enchantments. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.)

{T}: Add {C}.
{T}, Sacrifice Gilded Gulch: Add one mana of any color.
When you discard Gilded Gulch, you may pay {1}. If you do, create a tapped colorless land token named Fading Rift with “{T}, Sacrifice this land: Add one mana of any color.”

{2}, {T}, Sacrifice Vial of Dragonfire: It deals 2 damage to target creature.