msem-instigator

(Spend a different color of mana on each {VP}.)
Moresso, Infuser of Light is all colors.
Hexproof from monocolored
Whenever you cast a spell with four or more mana symbols in its mana cost, add four mana of different colors. This ability triggers only once each turn.

Whenever Lightseeker Nymph perseveres, search your library for a basic land card, put it onto the battlefield tapped, then shuffle. (A creature perseveres when it survives damage.)

When Teikoku Captain enters the battlefield, create a 2/2 colorless Spirit creature token.
Colorless creatures you control have first strike.

Enchant land
Enchanted land has “{T}: When target creature deals combat damage to an opponent this turn, draw a card. Activate only as a sorcery.”

Abandoned Battlefield enters the battlefield tapped if you control another nonbasic land.
{T}: Add {U} or {B}.

Shuffle your graveyard into your library, then draw two cards.

Colossal 2—{1}{G}{G} (You may cast this for its colossal cost to have it enter with two +1/+1 counters; or pay {1}{G}{G} as a sorcery: Put two +1/+1 counters on it if it has none.)
Whenever a permanent you control with a counter on it becomes the target of a spell or ability an opponent controls, draw a card.

When Reincarnation Savant dies, manifest the bottom card of your library. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

First strike, haste
When Mounted Marksman enters the battlefield, it deals 2 damage to target creature you don't control.

Flash
Ocean's Edge Kraken enters the battlefield with a hexproof counter on it.
{6}{U}{U}, Remove a hexproof counter from Ocean's Edge Kraken: Return all other creatures to their owners' hands.

Flying
Sire of Empires gets +1/+1 as long as you control another creature, has lifelink as long as you control an enchantment, and has vigilance as long as you control an artifact.

Whenever Duskwatcher attacks, create a Function token with “Tap target creature.” (It's an enchantment. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.)

Promenade Banner enters the battlefield tapped.
{1}, {T}: Creatures you control get +1/+1 until end of turn.

Flying
When Heartless Host enters the battlefield, arm target creature. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

{3}{G}: Put a +1/+1 counter on Lifecaller Dryad.

Create a tapped Plains token, Island token, Swamp token, Mountain token, or Forest token.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

{T}, Pay 1 life: Add {G} or {W}.
{1}, {T}, Sacrifice Overgrown Refuge: Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Fierce Contempt deals 6 damage to target creature.

Flying
Morph {3}{B}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Ishim of Genesis is turned face up, put a +1/+1 counter on it, then return target instant or sorcery card from your graveyard to your hand.

Vision (Whenever this or another creature enters the battlefield under your control, reveal the top card of your library. Then you may put that card into your graveyard.)
Whenever Dusk Occultist envisions a creature card, draw a card.

When Sealed Evil in a Cage enters the battlefield, exile target creature an opponent controls with mana value 3 or greater until Sealed Evil in a Cage leaves the battlefield.

Trample, haste
Erratic (When this creature dies, reveal the top four cards of your library. Put a creature card that costs less than this revealed this way onto the battlefield and the rest on the bottom of your library in any order.)
At the beginning of the end step, sacrifice Purgator of Storms.

Flying, vigilance

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)
Whenever Seeker of Ruins deals combat damage to a player, put a +1/+1 counter on it.

{1}, {T}, Sacrifice Looking Glass: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Kindle 1—{1} ({1}, Exile this card from your graveyard: Create a 1/1 colorless Elemental creature token. Kindle only as a sorcery.)