msem-instigator

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
Your opponents can't cast spells during your turn.
{W}{U}: Demigod — Until your next turn, whenever an opponent draws a card, you may draw a card.
{4}{W}{U}: God — If it isn't an extra turn, take an extra turn after this one. Untap all permanents you control at the beginning of that turn's end step.

Flying
When Sable Hoopoe enters, draw a card.

You may have Sun Yun enter as a copy of any creature on the battlefield, except her name is Sun Yun, Master of Man, she's legendary in addition to her other types, and she has “{2}{U}: Exile Sun Yun, then return her to the battlefield under her owner's control.”

Enchant creature
Enchanted creature doesn't untap during its controller's untap step.

Sword deals 2 damage to any target.
Fuse (You may cast one or both halves of this card from your hand.)

Flying
Whenever Soaring Biome attacks, create a Plains token, Island token, Swamp token, Mountain token, or Forest token. Sacrifice that land at the beginning of the next end step.
Crew 2 (Tap any number of creatures you control with total power 2 or greater: This Vehicle becomes an artifact creature until end of turn.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Over the Moon deals 4 damage to up to one target creature or planeswalker.
II, III — Until end of turn, spells you cast with mana value 4 or greater cost {1} less to cast and can't be countered.
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Whenever equipped creature deals combat damage to a player, draw a card.
Whenever a Vehicle you control becomes a creature, you may attach Planar Uplink to it.
Equip {U}

When this creature enters, create a Treasure token.

Enchant land
Enchanted land has “{T}: Draw a card, then discard a card.”

Choose two nonland permanent types. Exile each permanent that's at least one of the chosen types.
Flashback {8}{W}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flash
If an opponent would draw one or more cards except during their draw step, instead they draw a card and you create that many 1/1 white Bird creature tokens with flying.

Vanguard — Whenever a creature you control attacks alone, it gets +1/+1 until end of turn.

At the beginning of combat on your turn, choose one —
• Equipped creature gets +2/+0 and gains first strike until end of turn.
• Equipped creature gets +0/+2 and gains vigilance until end of turn.
Equip {3}

Flying (This creature can't be blocked except by creatures with flying or reach.)
{R}: Newborn Dragon gets +1/+0 until end of turn.

Prevent all combat damage creatures with flying would deal this turn. Creatures you control gain reach until end of turn.

Vigilance, reach
When DL-19 Reject enters, target creature you control gets +2/+2 until end of turn.

Counter target creature or Revelation spell unless its controller pays {3}.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
Flash
When Atieh enters, return target noncreature spell to its owner's hand.
{W}{U}: Angel — You gain 2 life and draw a card.
{2}{W}{U}: Elder — Atieh gains “Each opponent can't cast more than one spell each turn.”

Your opponents play with their hands revealed.

{X}{2}, {T}, Sacrifice Tinkerer's Tools: Sacrifice an artifact. If you do, search your library for an artifact card with mana value less than or equal to the sacrificed artifact's mana value plus X. Put it onto the battlefield, then shuffle. Activate only as a sorcery.

Sacrifice a creature: Soulsorrow Shade gets +2/+2 until end of turn.

You may exile cards you own as you reveal them. (You see the card before you exile it.)
During each of your turns, you may cast a card exiled with Starwing Nebula.

Whenever another nontoken creature you control enters, you may exile a number of cards from your graveyard equal to its mana value. If you do, create a token that's a copy of it, except the token isn't legendary if the creature is legendary.
{1}{B/G}: Look at the top card of your library. You may put that card into your graveyard.

Each player sacrifices three lands. Regal Ignition deals 3 damage to each nonlegendary creature.