msem-instigator

Flying
When Spawn of Keranos enters, you may draw a card. If you do, discard a card unless you control another creature with flying.

Whenever you cast a noncreature spell, create a 1/1 colorless Servo artifact creature token.
{1}{U}, {T}, Exile three noncreature cards from your graveyard: Draw a card.

Haste
Ward—Sacrifice a creature.
Spinning Gears Abomination enters with X +1/+1 counters on it.
Spinning Gears Abomination can't attack alone.

Splendid Scenery enters tapped unless you control a basic land.
{T}: Add {G} or {W}.

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

Chronicle (As this enters and after your draw step, add a lore counter. Stop after III.)
[Lore I-II] Another target creature you control gets +1/+1 until end of turn.
[Lore III] Search your library for a basic land card, put it onto the battlefield, then shuffle.

Menace
Stalker of Myth gets +1/+0 for each creature you control with chronicle.
{2}, Remove a counter from a permanent you control: Draw a card, then discard a card.

Trample, ward {1}
Whenever Stardust Surveyor deals combat damage to a player, you may mill cards until you mill a creature card. When you do, return target creature card from your graveyard to your hand.

Flash
Enchant creature
Enchanted creature gets +1/+1 for each enchantment you control.

At the beginning of your end step, you may sacrifice a permanent. When you do, return target creature card from your graveyard to your hand.

Augmented — If you've spent {W}{U}{B}{R}{G} to cast spells this turn, you may play Start Over without paying its mana cost.
Put target creature or planeswalker on the bottom of its owner's library.

Colossal 3—{4}{R} (You may cast this for its colossal cost to have it enter with three +1/+1 counters; or pay {4}{R} as a sorcery: Put three +1/+1 counters on it if it has none.)
When Storm-Eye Salamander's colossal ability puts one or more counters on it, exile the top three cards of your library. Until the end of your next turn, you may play one of those cards.

Vigilance
{4}{U}: Draw a card.

Flash
Enchant creature
Enchanted creature gets +1/+1 and has “Whenever this creature deals combat damage to an opponent, draw a card.”

Counter target noncreature spell unless its controller pays {1}.
If you control a creature with power 4 or greater, counter that spell instead.

Stunning Cascade enters tapped.
{T}: Add {U} or {R}.
{2}{U}{R}, {T}, Sacrifice Stunning Cascade: Draw a card.

When Sun-Blessed Hoplite enters, target creature you control gets +X/+X until end of turn, where X is your devotion to white. (Each {W} in the mana costs of permanents you control counts toward your devotion to white.)

You may pay {W}{U}{B}{R}{G} rather than pay this spell's cost.
When Suncolored Dreamer enters, draw a card.

Return target nonland permanent to its owner's hand.
Reconstruct {5}{U} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)

Target creature gets +2/+0 until end of turn and gains “When this creature dies, return it to the battlefield tapped under its owner's control.”

You can't cast this spell if you've cast another spell this turn.
Add seven mana in any combination of colors. Spend this mana only to cast red spells with mana value 6 or greater without {X} in their mana cost.

Choose up to one nonland permanent. Return the rest to their owners' hands.

Destroy target tapped creature.

Equipped creature gets +2/+2 and protection from black and from red.
Whenever equipped creature deals combat damage to a player, that player loses 3 life unless they discard a card or sacrifice a nonland permanent. You discard a card, then you draw two cards.
Equip {2}

Target creature gets +2/+2 until end of turn. Draw a card if that creature has a counter on it.